Past Stargazing Lectures

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srcset="https://divisions-prod.s3.amazonaws.com/astro70/images/40194526433_bfd778120a_k.width-425.format-avif.avif" type="image/avif"> <source srcset="https://divisions-prod.s3.amazonaws.com/astro70/images/40194526433_bfd778120a_k.width-425.jpg"> <img alt="!Cameron Hummels introduces speaker Jameson Rollins discussing the detection of gravitational waves with LIGO." class="img-fluid hero-image-block__slide__image" decoding="async" height="658" loading="lazy" src="https://divisions-prod.s3.amazonaws.com/astro70/images/40194526433_bfd778120a_k.width-990.jpg" width="990"> </picture> <div class="hero-image-block__slide__info "> <div class="hero-image-block__slide__info__caption"> Cameron Hummels introduces speaker Jameson Rollins to discuss gravitational waves and LIGO. </div> <div class="hero-image-block__slide__info__photo-credit"> Credit: Christophe Marcadé </div> </div> </div> </div> </section> <section class="block-AirspaceSpacerBlock"> <div class="spacer spacer--25"></div> </section> <section class="block-AirspaceRichTextBlock2"> <div class="airspace-rich-text"> <div class="rich-text"><p data-block-key="4wv7o"><b><i>Powerful Jets from Supermassive Black Holes<br/></i></b><a href="https://martijnoei.com/"><b>Martijn Oei</b></a> - February 14, 2025 (#107: Poster, Photos, <a href="https://youtube.com/live/r_VBsrkTmsA?feature=share">Video</a>)<b><i><br/><br/>Faster than Light Speed? The Physics of the Warp Drive<br/></i></b><a href="https://comp-relastro.caltech.edu/"><b>Elias Most</b></a> - January 24, 2025 (#106: Poster, Photos, <a href="https://youtube.com/live/iUydeMpN8Fc?feature=share">Video</a>)<b><i><br/><br/>Building a Galaxy from Scratch<br/></i></b><a href="https://samponnada.info/"><b>Sam Ponnada</b></a> - December 6, 2024 (#105: Poster, Photos, <a href="https://youtube.com/live/tMItLLsdu28?feature=share">Video</a>)<b><i><br/><br/>Mapping the Universe in Blurred Lines<br/></i></b><a href="https://pma.caltech.edu/people/delaney-dunne"><b>Delaney Dunne</b></a> - November 8, 2024 (#104: Poster, Photos, <a href="https://youtube.com/live/GZjGuNJEjxk?feature=share">Video</a>)<b><i><br/><br/>The Voyager Mission to the Outer Planets and Interstellar Space<br/></i></b><a href="https://heritageproject.caltech.edu/interviews-updates/alan-cummings"><b>Alan Cummings</b></a> - October 11, 2024 (#103: Poster, Photos, <a href="https://www.youtube.com/live/nZpoRGhhvwU">Video</a>)<b><i><br/><br/>AI in Astrophysics: How Machines Help Us Learn about the Universe<br/></i></b><a href="https://www.linkedin.com/in/joanna-piotrowska-astro/"><b>Joanna Piotrowska-Karpov</b></a> - September 27, 2024 (#102: Poster, Photos, <a href="https://www.youtube.com/watch?v=Y2W2nLBd6FI">Video</a>)<b><i><br/><br/>The Gigantic Black Hole in the Center of our Galaxy and the Stars Around It<br/></i></b><a href="https://scholars.huji.ac.il/reemsari"><b>Re'em Sari</b></a> - August 16, 2024 (#101: Poster, Photos, <a href="https://www.youtube.com/watch?v=H6tCu7oGAeY">Video</a>)<b><i><br/><br/>An Odyssey Through the Warped Side of Our Universe<br/></i></b><a href="https://en.wikipedia.org/wiki/Kip_Thorne"><b>Kip Thorne</b></a> - July 12, 2024 (#100: <a href="https://flic.kr/p/2q423Sx">Poster</a>, <a href="https://flickr.com/photos/143414768@N07/albums/72177720318917288/">Photos</a>, <a href="https://www.youtube.com/watch?v=TJcdI68GLb8">Video</a>)<b><i><br/><br/>Nova T Coronae Borealis: A New Star in the Crown<br/></i></b><a href="https://sites.astro.caltech.edu/~mansi/"><b>Mansi Kasliwal</b></a> - May 10, 2024 (#99: <a href="https://flickr.com/photos/143414768@N07/53748240989/in/album-72157669932990567/">Poster</a>, Photos, <a href="https://youtube.com/live/9vBXjNXDANA?feature=share">Video</a>)<b><i><br/><br/>Cosmic Gold Mining<br/></i></b><a href="https://www.shreyaganand.com/"><b>Shreya Anand</b></a> - April 19, 2024 (#98: <a href="https://flickr.com/photos/143414768@N07/53748240984/in/album-72157669932990567/">Poster</a>, Photos, <a href="https://youtube.com/live/6Qw7VHjToL8?feature=share">Video</a>)<b><i><br/><br/>SPHEREx: Zooming Out to See the Big Picture<br/></i></b><a href="https://pma.caltech.edu/people/james-j-jamie-bock"><b>Jamie Bock</b></a> - March 15, 2024 (#97: <a href="https://flickr.com/photos/143414768@N07/53747920476/in/album-72157669932990567/">Poster</a>, Photos, <a href="https://youtube.com/live/ilUyZnRYOgM?feature=share">Video</a>)<b><i><br/><br/>Chasing the Solar Atmosphere using Eclipses and the Parker Solar Probe<br/></i></b><a href="https://pma.caltech.edu/people/gabriel-d-muro"><b>Gabriel Muro</b></a> - February 16, 2024 (#96: <a href="https://flickr.com/photos/143414768@N07/53748240994/in/album-72157669932990567/">Poster</a>, Photos, <a href="https://youtube.com/live/n0XihwEgHjU?feature=share">Video</a>)<b><i><br/><br/>Supernovae: The Brilliant Endings of Massive Stars<br/></i></b><a href="https://sites.google.com/msu.edu/michaelpajkos/home"><b>Michael Pajkos</b></a> - January 12, 2024 (#95: <a href="https://flickr.com/photos/143414768@N07/53746997202/in/album-72157669932990567/">Poster</a>, Photos, <a href="https://youtube.com/live/m8hlItyHb7w?feature=share">Video</a>)<br/><br/><b><i>The Galactic Underworld: The Milky Way's Sea of Dormant Black Holes<br/></i></b><a href="https://kareemelbadry.github.io/"><b>Kareem El-Badry</b></a> - December 8, 2023 (#94: <a href="https://flickr.com/photos/143414768@N07/53748241004/in/album-72157669932990567/">Poster</a>, Photos, <a href="https://youtube.com/live/IW_BP1-zqQs?feature=share">Video</a>)<b><i><br/><br/>Stellar Tantrums and the Search for Extraterrestrial Life<br/></i></b><a href="https://pma.caltech.edu/people/yuping-huang"><b>Yuping Huang</b></a> - November 17, 2023 (#93: <a href="https://flickr.com/photos/143414768@N07/53748106373/in/album-72157669932990567/">Poster</a>, Photos, <a href="https://www.youtube.com/watch?v=VyyNRpjGScE">Video</a>)<br/><br/><b><i>FARSIDE: Exploring the Cosmos from the Moon<br/></i></b><a href="https://pma.caltech.edu/people/nivedita-mahesh"><b>Nivedita Mahesh</b></a> - September 29, 2023 (#92: <a href="https://flickr.com/photos/143414768@N07/53748241034/in/album-72157669932990567/">Poster</a>, Photos, <a href="https://www.youtube.com/watch?v=1jz1Ot4nzQk">Video</a>)<br/><br/><b><i>Galaxy Clusters Collide: The Most Energetic Events since the Big Bang<br/></i></b><a href="https://emsilich.github.io/"><b>Emily Silich</b></a> - August 25, 2023 (#91: <a href="https://flickr.com/photos/143414768@N07/53747920541/in/album-72157669932990567/">Poster</a>, Photos, <a href="https://youtube.com/live/X2_5uiAL_vE?feature=share">Video</a>)<b><i><br/><br/>¿Cuál es la edad de una estrella?<br/></i></b><a href="https://rkiman.github.io/"><b>Rocío Kiman</b></a> - August 18, 2023 (#90: <a href="https://flickr.com/photos/143414768@N07/53748106443/in/album-72157669932990567/">Poster</a>, Photos, <a href="https://youtube.com/live/kR-q6OKBrY8?feature=share">Video</a>)<b><i><br/><br/>How to Catch a Supernova (or One of its Transient Friends)<br/></i></b><a href="https://ashishmahabal.net/"><b>Ashish Mahabal</b></a> - July 28, 2023 (#89: <a href="https://flickr.com/photos/143414768@N07/53748334945/in/album-72157669932990567/">Poster</a>, Photos, <a href="https://youtube.com/live/il5BjOs8PQ8?feature=share">Video</a>)<b><i><br/><br/>Searching for Extrasolar Planets with the Keck Planet Finder<br/></i></b><a href="https://www.pma.caltech.edu/people/andrew-w-howard"><b>Andrew Howard</b></a> - July 14, 2023 (#88: <a href="https://flickr.com/photos/143414768@N07/53748334960/in/album-72157669932990567/">Poster</a>, Photos, <a href="https://youtube.com/live/niNgGd6bQdw?feature=share">Video</a>)<b><i><br/><br/>Finding Supermassive Black Holes with Pulsars<br/></i></b><a href="https://www.pma.caltech.edu/people/aaron-johnson"><b>Aaron Johnson</b></a> - June 30, 2023 (#87: <a href="https://flickr.com/photos/143414768@N07/53748106453/in/album-72157669932990567/">Poster</a>, Photos, <a href="https://youtube.com/live/HsCQyJAitD0?feature=share">Video</a>)<br/><b><i><br/>Dark Matter: The Elusive Fibers of the Universe<br/></i></b><a href="https://xuejianshen.github.io/personal-website/"><b>Xuejian Shen</b></a> - June 23, 2023 (#86: <a href="https://flickr.com/photos/143414768@N07/53746997292/in/album-72157669932990567/">Poster</a>, Photos, <a href="https://youtube.com/live/xyccTgyWhHY?feature=share">Video</a>)<br/><br/><b><i>Seeing the Invisible: Astronomical Radio Waves<br/></i></b><a href="https://pma.caltech.edu/people/nitika-yadlapalli"><b>Nitika Yadlapalli</b></a> - May 26, 2023 (#85: <a href="https://flickr.com/photos/143414768@N07/53748428630/in/album-72157669932990567/">Poster</a>, Photos, <a href="https://www.youtube.com/watch?v=prdS0zcovpo">Video</a>)<br/><br/><b><i>The Quest for Cosmic Dawn: First Results from the James Webb Space Telescope<br/></i></b><a href="https://sites.astro.caltech.edu/~rse/"><b>Richard Ellis</b></a> - April 14, 2023 (#84: <a href="https://flickr.com/photos/143414768@N07/53748335015/in/album-72157669932990567/">Poster</a>, Photos, <a href="https://www.youtube.com/watch?v=HQNbFcweWus">Video</a>)<br/><br/><b><i>Black Holes, Spaghettification, and Time Travel<br/></i></b><a href="https://nilsdeppe.com/"><b>Nils Deppe</b></a> - March 24, 2023 (#83: <a href="https://flickr.com/photos/143414768@N07/53748241144/in/album-72157669932990567/">Poster</a>, Photos, <a href="https://www.youtube.com/watch?v=cnc5NRhFLmI">Video</a>)<br/><br/><b><i>Can Exoplanets Keep Their Atmospheres Long Enough for Life to Develop?<br/></i></b><a href="https://www.jessicaspake.com/"><b>Jessica Spake</b></a> - February 24, 2023 (#82: <a href="https://flickr.com/photos/143414768@N07/53747920596/in/album-72157669932990567/">Poster</a>, Photos, <a href="https://www.youtube.com/watch?v=sHjYxxAaCPI">Video</a>)<br/><br/><b><i>The Green Comet in Context<br/></i></b><a href="http://chummels.org/"><b>Cameron Hummels</b></a> - February 7, 2023 (<a href="https://www.youtube.com/watch?v=VMi7sftpKNA">Video</a>)<br/><br/><b><i>Fireworks from Black Holes Devouring Stars<br/></i></b><a href="https://yaoyuhan.github.io/"><b>Yuhan Yao</b></a> - January 20, 2023 (#81: <a href="https://flickr.com/photos/143414768@N07/53748106483/in/album-72157669932990567/">Poster</a>, Photos, <a href="https://www.youtube.com/watch?v=0CpuO5rmsTM">Video</a>)<br/><br/><b><i>The Invisible Atmospheres of Galaxies<br/></i></b><a href="https://www.irynabutsky.me/"><b>Iryna Butsky</b></a> - 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July 15, 2022 (#76: <a href="https://flickr.com/photos/143414768@N07/53748263504/in/album-72157669932990567/">Poster</a>, Photos, <a href="https://www.youtube.com/watch?v=GpLRAlaRLRU">Video</a>)<br/><br/><b><i>Planetquake: what vibrations can tell us about the interiors of gas giant planets<br/></i></b><a href="https://www.cita.utoronto.ca/~jdewberry/"><b>Janosz Dewberry</b></a> - June 3, 2022 (#75: <a href="https://www.flickr.com/photos/143414768@N07/52161325312/in/album-72177720299971243/">Poster</a>, <a href="https://www.flickr.com/photos/143414768@N07/albums/72177720299971243">Photos</a>, <a href="https://www.youtube.com/watch?v=M3SlH2IhS5k">Video</a>)<br/><br/><b><i>Neutron Stars: Where Extreme Gravity Meets Extreme Matter<br/></i></b><a href="https://pma.caltech.edu/people/katerina-chatziioannou"><b>Katerina Chatziioannou</b></a> - May 13, 2022 (#74: <a href="https://www.flickr.com/photos/143414768@N07/52162347991/in/album-72177720299959711/">Poster</a>, <a href="https://www.flickr.com/photos/143414768@N07/albums/72177720299959711">Photos</a>, <a href="https://www.youtube.com/watch?v=nCvvSLCziZA">Video</a>)<br/><br/><b><i>Black Holes and Gravitational Waves: Was Einstein Right?<br/></i></b><a href="https://physics.cornell.edu/saul-teukolsky"><b>Saul Teukolsky</b></a> - April 8, 2022 (#73: <a href="https://flickr.com/photos/143414768@N07/53748106508/in/album-72157669932990567/">Poster</a>, <a href="https://www.youtube.com/watch?v=AsUIe5maqys">Video</a>)<br/><br/><b><i>Massive Binary Stars in Technicolor<br/></i></b><a href="https://margaretlazzarini.github.io/"><b>Margaret Lazzarini</b></a> - March 4, 2022 (#72: <a href="https://flickr.com/photos/143414768@N07/53748106513/in/album-72157669932990567/">Poster</a>, <a href="https://www.youtube.com/watch?v=5exBR_CePHo">Video</a>)<br/><br/><b><i>Mapping the Universe with Atoms and Molecules that Shine<br/></i></b><a href="https://www.guochaojasonsun.me/"><b>Guochao Sun</b></a> - February 4, 2022 (#71: <a href="https://flickr.com/photos/143414768@N07/53746997372/in/album-72157669932990567/">Poster</a>, <a href="https://www.youtube.com/watch?v=0b7-4tfx3J4">Video</a>)<br/><br/><b><i>How to Rip Apart a Star<br/></i></b><a href="https://samanthacwu.github.io/"><b>Samantha Wu</b></a> - January 14, 2022 (#70: <a href="https://flickr.com/photos/143414768@N07/53748335085/in/album-72157669932990567/">Poster</a>, <a href="https://www.youtube.com/watch?v=fn7wYssIHVI">Video</a>)<br/><br/><b><i>A Brief History of the Fast Radio Burst Enigma<br/></i></b><a href="https://liamconnorastro.com/"><b>Liam Connor</b></a> - December 12, 2021 (#69: <a href="https://flickr.com/photos/143414768@N07/53748241204/in/album-72157669932990567/">Poster</a>, <a href="https://www.youtube.com/watch?v=HRt-VMHNf1A">Video</a>)<br/><br/><b><i>The Enigmatic Corona: Powerhouse of Accreting Black Holes<br/></i></b><a href="https://www.linkedin.com/in/nikita-kamraj/"><b>Nikita Kamraj</b></a> - November 19, 2021 (#68: <a href="https://flickr.com/photos/143414768@N07/53747920711/in/album-72157669932990567/">Poster</a>, <a href="https://www.youtube.com/watch?v=jJvKqKVs7fA">Video</a>)<br/><br/><b><i>Tiny but Powerful: Hunting for Extreme White Dwarfs<br/></i></b><a href="https://ilariacaiazzo.com/"><b>Ilaria Caiazzo</b></a> - October 15, 2021 (#67: <a href="https://flickr.com/photos/143414768@N07/53748106543/in/album-72157669932990567/">Poster</a>, <a href="https://www.youtube.com/watch?v=w8bZ7fBSmrA">Video</a>)<br/><br/><b><i>Quantum Technologies: From Fundamental Physics to Deep Space Communications<br/></i></b><a href="https://www.pma.caltech.edu/people/maria-spiropulu"><b>Maria Spiropulu</b></a> - June 18, 2021 (#66: <a href="https://flickr.com/photos/143414768@N07/53748241209/in/album-72157669932990567/">Poster</a>, <a href="https://www.youtube.com/watch?v=lv-VCxzlK08">Video</a>)<br/><br/><b><i>The Surprising World of Pulsars<br/></i></b><a href="https://elves.caltech.edu/~ajaodand/"><b>Amruta Jaodand</b></a> - May 21, 2021 (#65: <a href="https://flickr.com/photos/143414768@N07/53747971436/in/album-72157669932990567/">Poster</a>, <a href="https://www.youtube.com/watch?v=s4ZttiU2iL8">Video</a>)<br/><br/><b><i>Endless Hunt for Black Holes<br/></i></b><a href="https://wenbinlu.github.io/"><b>Wenbin Lu</b></a> - April 16, 2021 (#64: <a href="https://flickr.com/photos/143414768@N07/53748292584/in/album-72157669932990567/">Poster</a>, <a href="https://www.youtube.com/watch?v=FLV2rNEIBng">Video</a>)<br/><br/><b><i>Astronomy on the Cusp: A Subject Driven by Technology (Not Ideas)<br/></i></b><a href="https://sites.astro.caltech.edu/~srk/"><b>Shri Kulkarni</b></a> - March 26, 2021 (#63: <a href="https://flickr.com/photos/143414768@N07/53747971441/in/album-72157669932990567/">Poster</a>, <a href="https://www.youtube.com/watch?v=elu7xaZnLKU">Video</a>)<br/><br/><b><i>Searching for the Violent Births and Deaths of Stars with Night-Vision Goggles<br/></i></b><a href="https://dekishalay.github.io/"><b>Kishalay De</b></a> - February 26, 2021 (#62: <a href="https://flickr.com/photos/143414768@N07/53747971446/in/album-72157669932990567/">Poster</a>, <a href="https://www.youtube.com/watch?v=DSLz0ArtFc4">Video</a>)<br/><br/><b><i>An Insider's Look Behind Science Headlines<br/></i></b><a href="https://sites.google.com/g.harvard.edu/sarah/home"><b>Sarah Blunt</b></a> - January 29, 2021 (#61: <a href="https://flickr.com/photos/143414768@N07/53748292624/in/album-72157669932990567/">Poster</a>, <a href="https://www.youtube.com/watch?v=KshW-7wIjQA">Video</a>)<br/><br/><b><i>Big Questions, Small Telescopes, and Fast Astronomy<br/></i></b><a href="https://sites.astro.caltech.edu/~vikram/"><b>Vikram Ravi</b></a> - December 4, 2020 (#60: <a href="https://flickr.com/photos/143414768@N07/53748292609/in/album-72157669932990567/">Poster</a>, <a href="https://www.youtube.com/watch?v=gAeS1gfjLko">Video</a>)<br/><br/><b><i>The First Portrait of a Black Hole and Beyond<br/></i></b><a href="http://users.cms.caltech.edu/~klbouman/"><b>Katie Bouman</b></a> - November 6, 2020 (#59: <a href="https://flickr.com/photos/143414768@N07/53748292604/in/album-72157669932990567/">Poster</a>, <a href="https://www.youtube.com/watch?v=Str2J_yBiXc">Video</a>)<br/><br/><b><i>Trying to Prove Einstein Wrong<br/></i></b><a href="https://www.agnesferte.com/"><b>Agnès Ferté</b></a> - October 9, 2020 (#58: <a href="https://flickr.com/photos/143414768@N07/53748241214/in/album-72157669932990567/">Poster</a>, <a href="https://www.youtube.com/watch?v=XR75NUYCfQo">Video</a>)<br/><br/><b><i>The Exceptional Astronomical Discoveries of the Ancient Greeks<br/></i></b><a href="https://www.hsfoundation.org/fellow/michael-zhang/"><b>Michael Zhang</b></a> - September 4, 2020 (#57: <a href="https://flickr.com/photos/143414768@N07/53748241239/in/album-72157669932990567/">Poster</a>, <a href="https://www.youtube.com/watch?v=sMVQX2gH5Gs">Video</a>)<br/><br/><b><i>The Explosive Origin of the Elements<br/></i></b><a href="https://www.linkedin.com/in/andrew-emerick/"><b>Andrew Emerick</b></a> - August 7, 2020 (#56: <a href="https://www.flickr.com/photos/143414768@N07/50214708012/in/album-72157669932990567/">Poster</a>, <a href="https://www.youtube.com/watch?v=Vj8-pVHgHJQ">Video</a>)<br/><br/><b><i>You'll Know It When You See It: Defining, Describing, and Detecting Life in the Universe<br/></i></b><a href="https://www.ceciliaandthebedofbones.com/"><b>Cecilia Sanders</b></a> - July 10, 2020 (#55: <a href="https://www.flickr.com/photos/143414768@N07/50214436506/in/album-72157669932990567/">Poster</a>, <a href="https://www.youtube.com/watch?v=VyzQpk2m5Hk">Video</a>)<br/><br/><b><i>Measuring the Speed of Stars More Precisely Than Your Car's Speedometer<br/></i></b><a href="https://rrubenza.github.io/"><b>Ryan Rubenzahl</b></a> - June 5, 2020 (#54: <a href="https://www.flickr.com/photos/143414768@N07/50213917098/in/album-72157669932990567/">Poster</a>, <a href="https://www.youtube.com/watch?v=7A9c5IEzM0w">Video</a>)<br/><br/><b><i>The Loneliest Galaxies in the Universe<br/></i></b><a href="https://mdlreyes.github.io/"><b>Mia de los Reyes</b></a> - May 8, 2020 (#53: <a href="https://www.flickr.com/photos/143414768@N07/50214705987/in/album-72157669932990567/">Poster</a>, <a href="https://www.youtube.com/watch?v=NHUzYB8siF8">Video</a>)<br/><br/><b><i>The Circumgalactic Medium: The Gas Around Galaxies<br/></i></b><a href="http://yuguang-chen.com/"><b>Yuguang Chen</b></a> - April 3, 2020 (#52: <a href="https://www.flickr.com/photos/143414768@N07/50213913858/in/album-72157669932990567/">Poster</a>, <a href="https://www.youtube.com/watch?v=SG0RGdtWsfI">Video</a>)<br/><br/><b><i>Real Images of Exoplanets (None of that Artist Conception Stuff)<br/></i></b><a href="https://jasonwang.space/#home"><b>Jason Wang</b></a> - March 20, 2020 (#51: <a href="https://www.flickr.com/photos/143414768@N07/50213913898/in/album-72157669932990567/">Poster</a>, <a href="https://www.youtube.com/watch?v=qUD6GoXisSs">Video</a>)<br/><br/><b><i>De los Atomos a los Agujeros Negros<br/></i></b><a href="https://sites.srl.caltech.edu/~javier/"><b>Javier García</b></a> - February 28, 2020 (#50: <a href="https://www.flickr.com/photos/143414768@N07/49536475617/in/album-72157669932990567/">Poster</a>, <a href="https://www.youtube.com/watch?v=n3fT0bg0n8U">Video</a>)<br/><br/><b><i>Galaxies are Cosmic Magnets<br/></i></b><a href="https://www.chalmers.se/en/persons/georgiap/"><b>Gina Panopoulou</b></a> - January 31, 2020 (#49: <a href="https://www.flickr.com/photos/143414768@N07/49474766623/in/album-72157669932990567/">Poster</a>, <a href="https://www.flickr.com/photos/143414768@N07/albums/72157712934625877">Photos</a>, <a href="https://www.youtube.com/watch?v=L_AgKyxos50">Video</a>)<br/><br/><b><i>The Solar System's Volcanic Wonderland<br/></i></b><a href="https://web.gps.caltech.edu/~dekleer/"><b>Katherine de Kleer</b></a> - December 6, 2019 (#48: <a href="https://www.flickr.com/photos/143414768@N07/48293199422/in/album-72157669932990567/">Poster</a>, <a href="https://www.flickr.com/photos/143414768@N07/albums/72157712768816711">Photos</a>, <a href="https://www.youtube.com/watch?v=GksMiUCQJf8">Video</a>)<br/><br/><b><i>Sounds of the Stars: Imaging Star Guts with Cosmic Music<br/></i></b><a href="http://www.tapir.caltech.edu/~fuller/"><b>Jim Fuller</b></a> - November 1, 2019 (#47: <a href="https://www.flickr.com/photos/143414768@N07/48293101026/in/album-72157669932990567/">Poster</a>, <a href="https://www.flickr.com/photos/143414768@N07/albums/72157712769776657">Photos</a>, <a href="https://www.youtube.com/watch?v=x6Vyx1cHuNM">Video</a>)<br/><br/><b><i>Why is the Sky Dark at Night?<br/></i></b><a href="https://www.linkedin.com/in/alessandro-schillaci-4b1485209/"><b>Alessandro Schillaci</b></a> - October 4, 2019 (#46: <a href="https://www.flickr.com/photos/143414768@N07/48293199577/in/album-72157669932990567/">Poster</a>, <a href="https://www.flickr.com/photos/143414768@N07/albums/72157711572312823">Photos</a>, <a href="https://www.youtube.com/watch?v=6GHA6CHCyaI">Video</a>)<br/><br/><b><i>Observing Black Holes<br/></i></b><a href="https://marianneheida.wixsite.com/info"><b>Marianne Heida</b></a> - September 6, 2019 (#45: <a href="https://www.flickr.com/photos/143414768@N07/48293199612/in/album-72157669932990567/">Poster</a>, <a href="https://www.flickr.com/photos/143414768@N07/albums/72157710773155967">Photos</a>, <a href="https://www.youtube.com/watch?v=10ub4OMDI5Y">Video</a>)<br/><br/><b><i>Galactic Archaeology: Digging Through the Remnants of Galaxies<br/></i></b><a href="https://www.linkedin.com/in/ginaduggan/"><b>Gina Duggan</b></a> - August 9, 2019 (#44: <a href="https://www.flickr.com/photos/143414768@N07/48130234797/in/album-72157669932990567/">Poster</a>, <a href="https://www.flickr.com/photos/143414768@N07/albums/72157710358530897">Photos</a>, <a href="https://www.youtube.com/watch?v=rursAmql9lc">Video</a>)<br/><br/><b><i>The Dynamic Radio Sky<br/></i></b><a href="https://dillon-z-dong.github.io/"><b>Dillon Dong</b></a> - July 12, 2019 (#43: <a href="https://www.flickr.com/photos/143414768@N07/48130234817/in/album-72157669932990567/">Poster</a>, <a href="https://www.flickr.com/photos/143414768@N07/albums/72157709618582326">Photos</a>, <a href="https://www.youtube.com/watch?v=saX0xnk561w">Video</a>)<br/><br/><b><i>We Were The Discoverers: Witnessing the Exoplanet Revolution<br/></i></b><a href="https://arpita.space/"><b>Arpita Roy</b></a> - June 7, 2019 (#42: <a href="https://www.flickr.com/photos/143414768@N07/47162486561/in/album-72157669932990567/">Poster</a>, <a href="https://www.flickr.com/photos/143414768@N07/albums/72157709016059507">Photos</a>, <a href="https://www.youtube.com/watch?v=vEt1rgHCYvU">Video</a>)<br/><br/><b><i>A Star is Born<br/></i></b><a href="https://mikegrudic.github.io/"><b>Mike Grudic</b></a> - May 10, 2019 (#41: <a href="https://www.flickr.com/photos/143414768@N07/47162486561/in/album-72157669932990567/">Poster</a>, <a href="https://www.flickr.com/photos/143414768@N07/albums/72157678218150667">Photos</a>, <a href="https://www.youtube.com/watch?v=hFHkfobZ_vk">Video</a>)<br/><br/><b><i>NASA's Spitzer Space Telescope: Revealing the Invisible<br/></i></b><a href="https://www.linkedin.com/in/marja-k-seidel-b4056011a/"><b>Marja Seidel</b></a> - April 12, 2019 (#40: <a href="https://www.flickr.com/photos/143414768@N07/46439178044/in/album-72157669932990567/">Poster</a>, <a href="https://www.flickr.com/photos/143414768@N07/albums/72157704587118912">Photos</a>, <a href="https://www.youtube.com/watch?v=Starwt3wN2w">Video</a>)<br/><br/><b><i>Planet Nine from Outer Space</i></b><br/><a href="https://mikebrown.caltech.edu/"><b>Mike Brown</b></a> - March 15, 2019 (#39: <a href="https://www.flickr.com/photos/143414768@N07/46439178114/in/album-72157669932990567/">Poster</a>, <a href="https://www.flickr.com/photos/143414768@N07/albums/72157707690340774">Photos</a>, <a href="https://www.youtube.com/watch?v=Zw5MDh_wpnI">Video</a>)<br/><br/><b><i>Cosmic Gold: Neutron Star Mergers, Gravitational Waves, and the Origin of the Elements<br/></i></b><a href="https://www.astro.princeton.edu/~quataert/"><b>Eliot Quataert</b></a> - March 1, 2019 (#38: <a href="https://www.flickr.com/photos/143414768@N07/47162486711/in/album-72157669932990567/">Poster</a>, <a href="https://www.flickr.com/photos/143414768@N07/albums/72157676942535427">Photos</a>, <a href="https://www.youtube.com/watch?v=YwbfHAi0Sbw">Video</a>)<br/><br/><b><i>The Universe at Cosmic Noon<br/></i></b><a href="https://www.linkedin.com/in/rtheios/"><b>Rachel Theios</b></a> - February 15, 2019 (#37: <a href="https://www.flickr.com/photos/143414768@N07/47108310942/in/album-72157669932990567/">Poster</a>, <a href="https://www.flickr.com/photos/143414768@N07/albums/72157707002718244">Photos</a>, <a href="https://www.youtube.com/watch?v=zAKUtROZAy0">Video</a>)<br/><br/><b><i>The Dawn of the Age of Gravitational-Wave and Multi-Messenger Astronomy<br/></i></b><a href="https://directory.caltech.edu/personnel/jrollins"><b>Jameson Rollins</b></a> - January 20, 2019 (#36: <a href="https://www.flickr.com/photos/143414768@N07/32218500287/in/album-72157669932990567/">Poster</a>, <a href="https://www.flickr.com/photos/143414768@N07/albums/72157703530422522">Photos</a>, <a href="https://www.youtube.com/watch?v=SaanmWNmzUM">Video</a>)<br/><br/><b><i>Understanding the Formation and Evolution of Galaxies<br/></i></b><a href="http://chummels.org/"><b>Cameron Hummels</b></a> - December 14, 2018 (#35: <a href="https://www.flickr.com/photos/143414768@N07/47108311022/in/album-72157669932990567/">Poster</a>, <a href="https://www.flickr.com/photos/143414768@N07/albums/72157706833613995">Photos</a>, <a href="https://www.youtube.com/watch?v=_WtvU4Xn2UE">Video</a>)<br/><br/><b><i>Planets Big and Small<br/></i></b><a href="https://www.physics.mcgill.ca/~evelee/"><b>Eve Lee</b></a> - November 16, 2018 (#34: <a href="https://www.flickr.com/photos/143414768@N07/32218500377/in/album-72157669932990567/">Poster</a>, <a href="https://www.flickr.com/photos/143414768@N07/albums/72157689859519763">Photos</a>, <a href="https://www.youtube.com/watch?v=fWLYyXUdsNI">Video</a>)<br/><br/><b><i>Ceres, an Unexpectedly Active Dwarf Planet: Findings from the Dawn Mission<br/></i></b><a href="https://www.ehlmann.caltech.edu/people/ehlmann.html"><b>Bethany Ehlmann</b></a> - October 12, 2018 (#33: <a href="https://www.flickr.com/photos/143414768@N07/43552131440/in/album-72157669932990567/">Poster</a>, <a href="https://www.flickr.com/photos/143414768@N07/albums/72157699264698942">Photos</a>, <a href="https://www.youtube.com/watch?v=oNffKS7hZ70">Video</a>)<br/><br/><b><i>Cosmic Cartography: A Billion Stars in Six Dimensions and the Gaia Revolution<br/></i></b><a href="https://www.erikpetigura.com/"><b>Erik Petigura</b></a> - September 14, 2018 (#32: <a href="https://www.flickr.com/photos/143414768@N07/30428594957/in/album-72157669932990567/">Poster</a>, <a href="https://www.flickr.com/photos/143414768@N07/albums/72157700947651901">Photos</a>, <a href="https://www.youtube.com/watch?v=CDxu8FRLMoY">Video</a>)<br/><br/><b><i>Simulating Black Holes<br/></i></b><a href="https://mariaokounkova.github.io/"><b>Maria Okounkova</b></a> - August 17, 2018 (#31: <a href="https://www.flickr.com/photos/143414768@N07/43323137245/in/album-72157669932990567/">Poster</a>, <a href="https://www.flickr.com/photos/143414768@N07/albums/72157670489291937">Photos</a>, <a href="https://www.youtube.com/watch?v=d0nHtoh6Mzk">Video</a>)<br/><br/><b><i>A Stellar Diamond Named Lucy<br/></i></b><a href="https://magazine.caltech.edu/post/socaltech-donal-osullivan"><b>Donal O'Sullivan</b></a> - July 20, 2018 (#30: <a href="https://www.flickr.com/photos/143414768@N07/43212701644/in/album-72157669932990567/">Poster</a>, <a href="https://www.flickr.com/photos/143414768@N07/albums/72157698352236301">Photos</a>, <a href="https://www.youtube.com/watch?v=ypJkg8QNURU">Video</a>)<br/><br/><b><i>Mysterious Flashes of Radio Waves from Deep Space<br/></i></b><a href="https://pma.caltech.edu/people/gregg-w-hallinan"><b>Gregg Hallinan</b></a> - June 22, 2018 (#29: <a href="https://www.flickr.com/photos/143414768@N07/42122533970/in/album-72157669932990567/">Poster</a>, <a href="https://www.flickr.com/photos/143414768@N07/albums/72157669933464857">Photos</a>, <a href="https://www.youtube.com/watch?v=qPPCcyCEdNA">Video</a>)<br/><br/><b><i>The Grand Tour: Exploring Planets Outside the Solar System<br/></i></b><a href="https://www.heatherknutson.org/"><b>Heather Knutson</b></a> - May 25, 2018 (#28: <a href="https://www.flickr.com/photos/143414768@N07/43883006912/in/album-72157669932990567/">Poster</a>, <a href="https://www.flickr.com/photos/143414768@N07/albums/72157699982041505">Photos</a>, <a href="https://www.youtube.com/watch?v=TqvBwpxb5JA">Video</a>)<br/><br/><b><i>On the Road to a Billion Planets<br/></i></b><a href="https://web.ipac.caltech.edu/staff/christia/"><b>Jessie Christiansen</b></a> - April 20, 2018 (#27: <a href="https://www.flickr.com/photos/143414768@N07/43212701864/in/album-72157669932990567/">Poster</a>, <a href="https://www.flickr.com/photos/143414768@N07/albums/72157672090293958">Photos</a>, <a href="https://www.youtube.com/watch?v=QH9qMhRFNxE">Video</a>)<br/><br/><b><i>The Truth About Black Holes<br/></i></b><a href="https://duetosymmetry.com/"><b>Leo Stein</b></a> - March 23, 2018 (#26: <a href="https://www.flickr.com/photos/143414768@N07/42122534150/in/album-72157669932990567/">Poster</a>, <a href="https://www.flickr.com/photos/143414768@N07/albums/72157669929530877">Photos</a>, <a href="https://www.youtube.com/watch?v=S1N3rq33Ydc">Video</a>)<br/><br/><b><i>Galaxies Aren't Great at Making Stars<br/></i></b><a href="http://morrscience.com/"><b>Matt Orr</b></a> - February 23, 2018 (#25: <a href="https://www.flickr.com/photos/143414768@N07/43931321831/in/album-72157669932990567/">Poster</a>, <a href="https://www.flickr.com/photos/143414768@N07/albums/72157698347715331">Photos</a>, <a href="https://www.youtube.com/watch?v=ytgxdpmFZe0">Video</a>)<br/><br/><b><i>When Galaxies Collide: Snapshots of the Universe's Largest Battles<br/></i></b><a href="http://astro1.panet.utoledo.edu/~amedling/"><b>Anne Medling</b></a> - January 27, 2018 (#24: <a href="https://www.flickr.com/photos/143414768@N07/42122534240/in/album-72157669932990567/">Poster</a>, <a href="https://www.flickr.com/photos/143414768@N07/albums/72157696777760972">Photos</a>, <a href="https://www.youtube.com/watch?v=N0eb1_Pd0DI">Video</a>)<br/><br/><b><i>Brown Dwarfs: Too Small a Star; Too Massive a Planet<br/></i></b><a href="https://stinyanont.github.io/"><b>Kaew Tinyanont</b></a> - December 8, 2017 (#23: <a href="https://www.flickr.com/photos/143414768@N07/43212702214/in/album-72157669932990567/">Poster</a>, <a href="https://www.flickr.com/photos/143414768@N07/albums/72157696777459382">Photos</a>, <a href="https://www.youtube.com/watch?v=6Mehpnn1i1g">Video</a>)<br/><br/><b><i>Cosmic Lenses: Bending Light with Gravity<br/></i></b><a href="https://www.linkedin.com/in/deniseschmitz42/"><b>Denise Schmitz</b></a> - November 17, 2017 (#22: <a href="https://www.flickr.com/photos/143414768@N07/42122534400/in/album-72157669932990567/">Poster</a>, <a href="https://www.flickr.com/photos/143414768@N07/albums/72157669914966307">Photos</a>, <a href="https://www.youtube.com/watch?v=qcHjw92mpaM">Video</a>)<br/><br/><b><i>Cosmic Fireworks<br/></i></b><a href="https://sites.astro.caltech.edu/~mansi/"><b>Mansi Kasliwal</b></a> - October 20, 2017 (#21: <a href="https://www.flickr.com/photos/143414768@N07/43026205245/in/album-72157669932990567/">Poster</a>, <a href="https://www.flickr.com/photos/143414768@N07/albums/72157699966372905">Photos</a>, <a href="https://www.youtube.com/watch?v=SzRAov1H6Ig">Video</a>)<br/><br/><b><i>Where to Find Real Time Machines and How to Use Them<br/></i></b><a href="https://sites.astro.caltech.edu/~afaisst/"><b>Andreas Faisst</b></a> - September 22, 2017 (#20: <a href="https://www.flickr.com/photos/143414768@N07/43212702504/in/album-72157669932990567/">Poster</a>, <a href="https://www.flickr.com/photos/143414768@N07/albums/72157696776899832">Photos</a>, <a href="https://www.youtube.com/watch?v=MxY_-57-jQs">Video</a>)<br/><br/><b><i>The Origin of the Universe and the Arrow of Time<br/></i></b><a href="https://www.preposterousuniverse.com/about/"><b>Sean Carroll</b></a> - August 11, 2017 (#19: <a href="https://www.flickr.com/photos/143414768@N07/28994341067/in/album-72157669932990567/">Poster</a>, <a href="https://www.flickr.com/photos/143414768@N07/albums/72157694146445380">Photos</a>, <a href="https://www.youtube.com/watch?v=hagHHV6RYZ8">Video</a>)<br/><br/><b><i>Understanding the Universe Using Gravitational Waves<br/></i></b><a href="https://astridlamberts.wordpress.com/"><b>Astrid Lamberts</b></a> - July 14, 2017 (#18: <a href="https://www.flickr.com/photos/143414768@N07/43212702704/in/album-72157669932990567/">Poster</a>, <a href="https://www.flickr.com/photos/143414768@N07/albums/72157669913115897">Photos</a>, <a href="https://www.youtube.com/watch?v=p2m-2OsPX88">Video</a>)<br/><br/><b><i>The Origin of the Elements<br/></i></b><a href="https://users.obs.carnegiescience.edu/iescala/"><b>Ivanna Escala</b></a> - June 2, 2017 (#17: <a href="https://www.flickr.com/photos/143414768@N07/43026205555/in/album-72157669932990567/">Poster</a>, <a href="https://www.flickr.com/photos/143414768@N07/albums/72157669912763827">Photos</a>, <a href="https://www.youtube.com/watch?v=OqJ25o0HvdU">Video</a>)<br/><br/><b><i>Simulating the Galaxies of our Universe<br/></i></b><a href="https://wetzel.ucdavis.edu/"><b>Andrew Wetzel</b></a> - May 5, 2017 (#16: <a href="https://www.flickr.com/photos/143414768@N07/43212702954/in/album-72157669932990567/">Poster</a>, <a href="https://www.flickr.com/photos/143414768@N07/albums/72157699583822284">Photos</a>, <a href="https://www.youtube.com/watch?v=-XWsSu431K4">Video</a>)<br/><br/><b><i>Why Stars Shine<br/></i></b><a href="https://live-sas-physics.pantheon.sas.upenn.edu/people/standing-faculty/robyn-sanderson"><b>Robyn Sanderson</b></a> - March 31, 2017 (#15: <a href="https://www.flickr.com/photos/143414768@N07/43026205905/in/album-72157669932990567/">Poster</a>, <a href="https://www.flickr.com/photos/143414768@N07/albums/72157696774908272">Photos</a>, <a href="https://youtu.be/pbkAVd-AZKk">Video</a>)<br/><br/><b><i>The Elusive Origins of Hot Jupiters<br/></i></b><a href="https://www.konstantinbatygin.com/"><b>Konstantin Batygin</b></a> - March 3, 2017 (#14: <a href="https://www.flickr.com/photos/143414768@N07/30062472008/in/album-72157669932990567/">Poster</a>, <a href="https://www.flickr.com/photos/143414768@N07/albums/72157669912337937">Photos</a>, <a href="https://www.youtube.com/watch?v=CiczP5OLkBE">Video</a>)<br/><br/><b><i>The Science of Star Trek<br/></i></b><a href="https://web.gps.caltech.edu/~mlwong/mlw.html"><b>Michael Wong</b></a> - February 3, 2017 (#13: <a href="https://www.flickr.com/photos/143414768@N07/43026206135/in/album-72157669932990567/">Poster</a>, <a href="https://www.flickr.com/photos/143414768@N07/albums/72157669911933437">Photos</a>, <a href="https://www.youtube.com/watch?v=RmfUUoojGrQ">Video</a>)<br/><br/><b><i>The Universe through X-ray Eyes<br/></i></b><a href="https://pma.caltech.edu/people/fiona-a-harrison"><b>Fiona Harrison</b></a> - January 13, 2017 (#12: <a href="https://www.flickr.com/photos/143414768@N07/30062472208/in/album-72157669932990567/">Poster</a>, <a href="https://www.flickr.com/photos/143414768@N07/albums/72157696774202542">Photos</a>, <a href="https://www.youtube.com/watch?v=xLJLwx9a3fc">Video</a>)<br/><br/><b><i>ALMA: A Revolutionary New View of the Cosmos<br/></i></b><a href="https://pma.caltech.edu/people/nicholas-z-nick-scoville"><b>Nick Scoville</b></a> - December 2, 2016 (#11: <a href="https://www.flickr.com/photos/143414768@N07/43026206425/in/album-72157669932990567/">Poster</a>, <a href="https://www.flickr.com/photos/143414768@N07/albums/72157669911673227">Photos</a>)<br/><br/><b><i>How to Prepare for the Great American Eclipse of 2017<br/></i></b><a href="https://www.ehamden.org/"><b>Erika Hamden</b></a> - November 4, 2016 (#10: <a href="https://www.flickr.com/photos/143414768@N07/30062472338/in/album-72157669932990567/">Poster</a>, <a href="https://www.flickr.com/photos/143414768@N07/albums/72157694144752610">Photos</a>)<br/><br/><b><i>Cosmic Explosions through the Ages: Supernovae Seen with the Naked Eye<br/></i></b><a href="https://physics-astronomy.jhu.edu/directory/jacob-jencson/"><b>Jacob Jencson</b></a> - October 7, 2016 (#9: <a href="https://www.flickr.com/photos/143414768@N07/42122535300/in/album-72157669932990567/">Poster</a>, <a href="https://www.flickr.com/photos/143414768@N07/albums/72157669933132257">Photos</a>)<br/><br/><b><i>The Invisible Universe Revealed: From Glowing Dust to Spinning Stellar Corpses<br/></i></b><a href="https://annayqho.github.io/"><b>Anna Ho</b></a> - September 9, 2016 (#8: <a href="https://www.flickr.com/photos/143414768@N07/30062472498/in/album-72157669932990567/">Poster</a>, <a href="https://www.flickr.com/photos/143414768@N07/albums/72157699962789045">Photos</a>)<br/><br/><b><i>You Can't Spell Exoplanets without Ex(ecutions)<br/></i></b><a href="https://web.ipac.caltech.edu/staff/christia/"><b>Jessie Christiansen</b></a> - August 12, 2016 (#7: <a href="https://www.flickr.com/photos/143414768@N07/28994341877/in/album-72157669932990567/">Poster</a>, <a href="https://www.flickr.com/photos/143414768@N07/albums/72157696773618532">Photos</a>, <a href="https://www.youtube.com/watch?v=ZQzAIgCsYkY">Video</a>)<br/><br/><b><i>Simulating the Universe on a Supercomputer<br/></i></b><a href="http://chummels.org/"><b>Cameron Hummels</b></a> - July 8, 2016 (#6: <a href="https://www.flickr.com/photos/143414768@N07/30062472888/in/album-72157669932990567/">Poster</a>, <a href="https://www.flickr.com/photos/143414768@N07/albums/72157669911066607">Photos</a>, <a href="https://www.youtube.com/watch?v=FBwXLtTkdCw">Video</a>)<br/><br/><b><i>Black Holes Don't Suck</i></b><i><br/></i><a href="https://www.chiaramingarelli.com/"><b>Chiara Mingarelli</b></a> - June 10, 2016 (#5: <a href="https://www.flickr.com/photos/143414768@N07/28994342037/in/album-72157669932990567/">Poster</a>, <a href="https://www.flickr.com/photos/143414768@N07/albums/72157669909522187">Photos</a>)<br/><br/><b><i>The Air We (Can't) Breathe: A History of Air on Venus, Earth, and Mars</i></b><b><br/></b><a href="https://www.bucknell.edu/fac-staff/jackie-villadsen"><b>Jackie Villadsen</b></a> - May 13, 2016 (#4: <a href="https://www.flickr.com/photos/143414768@N07/42122535570/in/album-72157669932990567/">Poster</a>, <a href="https://www.flickr.com/photos/143414768@N07/albums/72157669909432817">Photos</a>, <a href="https://www.youtube.com/watch?v=0dev72U9NTw">Video</a>)<br/><br/><b><i>Astronomy from the Bottom of the Earth: Telescopes at the South Pole</i></b><b><br/></b><a href="https://as.cornell.edu/people/abigail-crites"><b>Abby Crites</b></a> - April 15, 2016 (#3: <a href="https://www.flickr.com/photos/143414768@N07/28994342177/in/album-72157669932990567/">Poster</a>, <a href="https://www.flickr.com/photos/143414768@N07/albums/72157699960856345">Photos</a>, <a href="https://www.youtube.com/watch?v=igxT92YllCQ">Video</a>)<br/><br/> <b><i>What Causes the Northern Lights? 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Past Stargazing Lectures - Astronomy