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<a href="/eclipse/total-lunar-eclipse.html">total lunar eclipse</a> is sometimes called a Blood Moon, because of the reddish tinge the <a href="/astronomy/moon/full-moon.html">Full Moon</a> takes on when fully eclipsed. The term is also frequently used to describe four total lunar eclipses that occur in a row.</p><section class=article__updates><button type=button class="right close" onclick="this.parentNode.style.display='none';">×</button><img class="left mgr10" src="//c.tadst.com/gfx/n/i/alert-eclipse.png"><p><strong>Next Total Lunar Eclipse: </strong><a href="/eclipse/lunar/2025-september-7" class=read-more>Sun, 7 Sep 2025 … See animation</a></p></section><div class=article__body><script type="text/template" id=lunarEclipseTemplate><svg width="400" height="400" viewBox="0 0 400 400" preserveAspectRatio="xMinYMin meet" class="lunarEclipse"><clipPath id="clip"><circle cx="0" cy="0" r="100" class="focusBody"></circle></clipPath><g class="bodies"><g class="focusBody" transform="translate(200,200) scale(1)"><circle class="moon" cx="0" cy="0" r="100"></circle><circle class="moonCrater" cx="0" cy="0" r="20" transform=" translate(-60,-20) rotate(10) scale(1, 1.4) "></circle><circle class="moonCrater" cx="0" cy="0" r="20" transform=" translate(-28,-65) rotate(40) scale(0.55, 0.7) "></circle><circle class="moonCrater" cx="0" cy="0" r="20" transform=" translate(-58,50) rotate(-40) scale(0.2, 0.5) "></circle></g><circle class="penumbra " cx="200" cy="200" r="100" clip-path="url(#clip)"></circle><circle class="umbra" cx="100" cy="200" r="100" clip-path="url(#clip)"></circle></g><g class="horizon" style="display:none"><rect x="0" y="390" width="400" height="10" fill="#000"></rect></g><g class="underHorizon" style="display:none"><path fill="#F2F1E5" d="M282.43 113.254c-5.729-1.792-11.811-3.577-17.892-5.368c-20.396-5.363-42.225-8.227-64.053-8.227 c-28.263 0-56.173 5.009-81.938 13.595c-45.082 15.387-83.73 42.225-109.488 74.425c26.118 32 64 59 109 74 l0 0c10.019 3 20 6 30 8.586c16.46 3 33 5 51 5.361c28.27 0 56.18-5.009 81.944-13.947 c44.723-15.388 83.371-42.225 109.489-74.431C366.513 155 327 128 282 113.254z"></path><path fill="#A2CBE4" d="M311.412 188.039c0 28.623-10.738 54.748-28.63 74.424c-25.758 8.947-53.667 13.956-81.938 13 c-28.27 0-56.173-5.009-81.938-13.956l0 0c-17.892-19.676-28.623-45.801-28.623-74.424c0-28.623 11.09-54.748 28.982-74.424 c25.758-8.587 53.308-13.596 81.938-13.596c28.623 0 56 5 81 13 C300.321 132 311 159 311 188.039z"></path><path fill="#333333" d="M200.485 232.048c-24.327 0-44.363-20.035-44.363-44.368c0-24.328 20.036-44.371 44.363-44.371 c24.333 0 44 20 44 44.371C244.854 212 225 232 200 232.048z"></path><path fill="#F2F1E5" d="M208.358 179.093c-8.586 0-15.74-7.154-15.74-15.741c0-8.592 7.154-15.746 15.74-15.746 s15.747 7 15 15.746C224.466 172 217 179 208 179.093z"></path><path fill="#010101" d="M387.27 191.975c-25.406-32.206-63.334-57.964-106.631-72.639c-6.082-2.145-11.811-3.576-17.173-5.009 c-47.594-12.522-96.253-10.378-142.415 5.009C77.754 134 39 159 14 191.975l-10.018-7.873 c26.837-33.991 66.911-61.181 112.353-76.569c48.306-16.459 99.836-18.611 149.568-5.369c5.729 1 11 3 18 5 c45.801 15 85 42 112 76.569L387.27 191.975z"></path><rect x="187" y="51" transform="matrix(-0.735 -0.6781 0.6781 -0.735 213.1981 481.084)" fill="#B92427" width="25" height="295"></rect></g></svg></script><figure class="article__figure article__figure--zoomable" data-tad-control=ClassOnClick data-tad-options="{classname: 'article__figure--zoomed'}"><div class=article__img-container><img src="//c.tadst.com/gfx/600x337/total-lunar-eclipse-blood-moon-additional.png?1" width=600 height=337 alt="Illustration of how Earth's atmosphere scatters blue light." class=article__img srcset="//c.tadst.com/gfx/900x506/total-lunar-eclipse-blood-moon-additional.png?1 1.5x,//c.tadst.com/gfx/1200x675/total-lunar-eclipse-blood-moon-additional.png?1 2x"></div><div class=article__lightbox><img src="//c.tadst.com/gfx/1200x675/total-lunar-eclipse-blood-moon-additional.png?1" width=1200 height=675 alt="Illustration of how Earth's atmosphere scatters blue light." class=article__img-large loading=lazy></div><figcaption><p class=article__img-caption>Earth's atmosphere filters out blue light.</p></figcaption></figure><article class=" tad-box tad-box--is-clickable tad-teaser tad-teaser--list-compact tad-teaser--no-border tad-teaser--no-padding "><a href="/news/astronomy/lunar-eclipse-march-2025" class=tad-teaser__link><div class=tad-teaser__media><picture class="tad-image tad-image--fit-cover tad-teaser__image"><img class=tad-image__image src="//c.tadst.com/gfx/64x64/march-eclipse-season-small.jpg?1" alt='A dark blue graphic featuring a red-hued Moon at the top, representing a total lunar eclipse. Below, bold white text reads "Total Lunar Eclipse" with the dates "March 13–14." The "timeanddate.com" copyright is visible at the bottom right.' width=64 height=64 loading=lazy></picture></div><div class=tad-teaser__content-wrap><div class=tad-teaser__text-wrap><div class="tad-text tad-text--title-content-regular tad-teaser__heading">March 2025: Total Lunar Eclipse</div></div><p class="tad-text tad-text--body-fineprint tad-teaser__meta">Published: <time datetime="2025-02-20 00:00:00">Feb 20, 2025</time></p></div></a></article><h2>Why Are Blood Moons Red?</h2><p>Blood Moon is not a scientific term, though in recent times it is being widely used to refer to a <a href="/eclipse/total-lunar-eclipse.html">total lunar eclipse</a> because a fully eclipsed Moon often takes on a reddish color—like in the image below, which was taken during the <a href="/eclipse/lunar/2015-september-28">total lunar eclipse in September 2015</a>.</p><p class=large-link><a href="/scripts/go.php?type=eclipse">Eclipses in your city (with animations)</a></p><p>So, why does the Moon turn red?</p><p>A total lunar eclipse happens when the Moon travels through the Earth's <a href="/eclipse/umbra-shadow.html">umbra</a> and blocks all direct sunlight from illuminating the Moon's surface. However, some sunlight <a href="/eclipse/why-does-moon-look-red-lunar-eclipse.html">still reaches the lunar surface indirectly</a>, via the Earth's atmosphere, bathing the Moon in a reddish, yellow, or orange glow.</p><p>As the Sun's rays pass through the atmosphere, some colors in the light spectrum—those towards the violet spectrum—are filtered out by a phenomenon called <a href="/astronomy/red-sunset.html">Rayleigh scattering</a>. This is the same mechanism that <a href="/astronomy/red-sunset.html">causes colorful sunrises and sunsets</a>. Red wavelengths are least affected by this effect, so the light reaching the Moon's surface has a reddish hue, causing the fully eclipsed Moon to take on a red color.</p><p class=large-link><a href="/scripts/go.php?type=sun">Sunrise and sunset times in your city</a></p><p>Depending on the composition of the atmosphere, different parts of the light spectrum are filtered out, so the Moon may also look yellow, orange, or brown during a total lunar eclipse.</p><p class=large-link><a href="/astronomy/moon/blue-moon.html">Is a Blue Moon really blue?</a></p><figure class="article__figure "><div class=article__img-container><img src="//c.tadst.com/gfx/600x337/lunar-eclipse-sep-28-2015-deanne-fortnam-4.jpg?1" width=600 height=337 title="A total lunar eclipse September 28, 2015." alt="A bright red Moon during a total lunar eclipse against a black night sky." class=article__img srcset="//c.tadst.com/gfx/900x506/lunar-eclipse-sep-28-2015-deanne-fortnam-4.jpg?1 1.5x,//c.tadst.com/gfx/1200x675/lunar-eclipse-sep-28-2015-deanne-fortnam-4.jpg?1 2x"></div><figcaption><p class=article__img-caption>Blood Moon in September 2015.</p><p class=article__img-credit>Deanne Fortnam</p></figcaption></figure><h2>Lunar Tetrad</h2><p>The term Blood Moon is also sometimes used to refer to four total lunar eclipses that happen in the span of two years, a phenomenon astronomers call a lunar tetrad. The eclipses in a tetrad occur about six months apart with five uneclipsed Full Moons between them.</p><p>Usually, only about one in three lunar eclipses are total, and about four to five total eclipses can be seen from any single location on Earth in a decade. This means that lunar tetrads are rare occurrences, leading some to attach special, even religious, significance to these events.</p><p>The <a href="/eclipse/list-total-lunar.html?starty=2010">2014–2015 lunar tetrad</a> gathered a lot of attention because of claims by some religious organizations that the eclipses in the tetrad were a sign of the end times. Some even called the eclipses Blood Moons after a statement in the <em>Book of Joel</em> in the Hebrew Bible, that referred to the Sun turning dark and the Moon turning red before the second coming of Jesus.</p><p class=large-link><a href="/calendar/apocalypse.html" class=read-more>Other doomsday prophecies that fell short</a></p><h2>How Often Do Lunar Tetrads Happen?</h2><p>It depends on the century you look at. Italian astronomer Giovanni Schiaparelli calculated that the occurrence of lunar tetrads varies over centuries. Some have several lunar tetrads, while others do not have any. For example, the years between 1582 and 1908 did not have any tetrads, whereas the next 250 years—from 1909 to 2156—will have 17 tetrads.</p><p>The current century—<a href="/counters/mil2000.html">2001 to 2100</a>—will have eight tetrads. The first tetrad of the 21st century took place in 2003-2004, the second was in 2014–2015, and the next will be in 2032–2033, with the following eclipses:</p><ul><li><a href="/eclipse/lunar/2032-april-25">April 25/26, 2032</a></li><li><a href="/eclipse/lunar/2032-october-18">October 18/19, 2032</a></li><li><a href="/eclipse/lunar/2033-april-14">April 14/15, 2033</a></li><li><a href="/eclipse/lunar/2033-october-8">October 8, 2033</a></li></ul><p class=large-link><a href="/eclipse/list-total-lunar.html">All eclipses 1900 – 2199</a></p><h2>Hunter's Moon</h2><p>The <a href="/astronomy/moon/full-moon.html">Full Moon</a> in the month of <a href="/calendar/months/october.html">October</a> is also sometimes called a <a href="/astronomy/moon/hunters.html">Blood Moon</a> in many North American cultures. This name comes from the fact that October is usually when hunters spend time hunting game and preparing meat for the coming winter. The October Full Moon is also known as Hunter's Moon or Harvest Moon.</p><p class=large-link><a href="/astronomy/moon/full-moon-names.html">Traditional Full Moon names</a></p><div id=ec-coming class=article_tbl__wrap><h2>Upcoming 5 Total Lunar Eclipses</h2><div class=tbl__wrap><div class=tbl__item><a href="/eclipse/lunar/2025-september-7" class=ec-link><span class=ec-date>7–8 Sep 2025</span><span class=ec-icon><div data-tad-control='EclipseSVG' data-tad-options="{settings:{w:60,h:60,t:0,sr:0.265,mr:0.273,su:0.736,sp:1.266,mx:0.131,my:-0.243,hz:49.927}, template:'lunarEclipseTemplate'}"><noscript><img src="//c.tadst.com/scripts/eclipsegfx.php?v=2&t=0&w=60&h=60&sr=0.265&mr=0.273&su=0.736&sp=1.266&mx=0.131&my=-0.243&hz=49.927" width=60 height=60 alt="Eclipse as seen from earth"></noscript></div></span><span class=ec-type>Lunar Eclipse <span class=sub>(Total)</span></span><span class=ec-where>Europe, Asia, Australia, Africa, West in North America, East in South America, Pacific, Atlantic, Indian Ocean, Arctic, Antarctica</span><span class=ec-map><img src="//c.tadst.com/gfx/eclipses2/20250907/path-160.png" width=160 height=80 class=ecl-paths></span></a></div><div class=tbl__item><a href="/eclipse/lunar/2026-march-3" class=ec-link><span class=ec-date>2–3 Mar 2026</span><span class=ec-icon><div data-tad-control='EclipseSVG' data-tad-options="{settings:{w:60,h:60,t:0,sr:0.269,mr:0.264,su:0.698,sp:1.236,mx:-0.172,my:-0.321,hz:49.946}, template:'lunarEclipseTemplate'}"><noscript><img src="//c.tadst.com/scripts/eclipsegfx.php?v=2&t=0&w=60&h=60&sr=0.269&mr=0.264&su=0.698&sp=1.236&mx=-0.172&my=-0.321&hz=49.946" width=60 height=60 alt="Eclipse as seen from earth"></noscript></div></span><span class=ec-type>Lunar Eclipse <span class=sub>(Total)</span></span><span class=ec-where>East in Europe, Asia, Australia, North America, South America, Pacific, Atlantic, Indian Ocean, Arctic, Antarctica</span><span class=ec-map><img src="//c.tadst.com/gfx/eclipses2/20260303/path-160.png" width=160 height=80 class=ecl-paths></span></a></div><div class=tbl__item><a href="/eclipse/lunar/2028-december-31" class=ec-link><span class=ec-date>31 Dec 2028–1 Jan 2029</span><span class=ec-icon><div data-tad-control='EclipseSVG' data-tad-options="{settings:{w:60,h:60,t:0,sr:0.271,mr:0.268,su:0.709,sp:1.251,mx:0.057,my:0.315,hz:63.452}, template:'lunarEclipseTemplate'}"><noscript><img src="//c.tadst.com/scripts/eclipsegfx.php?v=2&t=0&w=60&h=60&sr=0.271&mr=0.268&su=0.709&sp=1.251&mx=0.057&my=0.315&hz=63.452" width=60 height=60 alt="Eclipse as seen from earth"></noscript></div></span><span class=ec-type>Lunar Eclipse <span class=sub>(Total)</span></span><span class=ec-where>Europe, Asia, Australia, Africa, North/West North America, Pacific, Atlantic, Indian Ocean, Arctic</span><span class=ec-map><img src="//c.tadst.com/gfx/eclipses2/20281231/path-160.png" width=160 height=80 class=ecl-paths></span></a></div><div class=tbl__item><a href="/eclipse/lunar/2029-june-26" class=ec-link><span class=ec-date>25–26 Jun 2029</span><span class=ec-icon><div data-tad-control='EclipseSVG' data-tad-options="{settings:{w:60,h:60,t:0,sr:0.262,mr:0.270,su:0.729,sp:1.254,mx:-0.002,my:0.012,hz:49.935}, template:'lunarEclipseTemplate'}"><noscript><img src="//c.tadst.com/scripts/eclipsegfx.php?v=2&t=0&w=60&h=60&sr=0.262&mr=0.270&su=0.729&sp=1.254&mx=-0.002&my=0.012&hz=49.935" width=60 height=60 alt="Eclipse as seen from earth"></noscript></div></span><span class=ec-type>Lunar Eclipse <span class=sub>(Total)</span></span><span class=ec-where>Europe, West in Asia, Africa, North America, South America, Pacific, Atlantic, Indian Ocean, Antarctica</span><span class=ec-map><img src="//c.tadst.com/gfx/eclipses2/20290626/path-160.png" width=160 height=80 class=ecl-paths></span></a></div><div class=tbl__item><a href="/eclipse/lunar/2029-december-20" class=ec-link><span class=ec-date>20–21 Dec 2029</span><span class=ec-icon><div data-tad-control='EclipseSVG' data-tad-options="{settings:{w:60,h:60,t:0,sr:0.271,mr:0.254,su:0.658,sp:1.201,mx:-0.034,my:-0.353,hz:63.229}, template:'lunarEclipseTemplate'}"><noscript><img src="//c.tadst.com/scripts/eclipsegfx.php?v=2&t=0&w=60&h=60&sr=0.271&mr=0.254&su=0.658&sp=1.201&mx=-0.034&my=-0.353&hz=63.229" width=60 height=60 alt="Eclipse as seen from earth"></noscript></div></span><span class=ec-type>Lunar Eclipse <span class=sub>(Total)</span></span><span class=ec-where>Europe, Asia, North/West Australia, Africa, North America, South America, Pacific, Atlantic, Indian Ocean, Arctic</span><span class=ec-map><img src="//c.tadst.com/gfx/eclipses2/20291220/path-160.png" width=160 height=80 class=ecl-paths></span></a></div></div><p class=lk-block><a class=read-more href="/eclipse/list.html">More details about upcoming Eclipses</a></p></div><p class=article__htags><strong>Topics: </strong><a href="/topics/astronomy">Astronomy</a>, <a href="/topics/eclipses">Eclipses</a>, <a href="/topics/moon">Moon</a></p></div></article><aside class="layout-grid__sidebar article__sidebar"><div class="clip-block clip-block--countdown"><div class=cd-block><h3 class=cd-block__title>Next Total Lunar Eclipse</h3><a href="/countdown/eclipse?iso=20250907" class=cd-block__times><span class=cd-block__time><span id=el_d1> 160</span><span id=el_d1t class=cd-block__unit>Days</span></span><span class=cd-block__time><span id=el_h1> 17</span><span id=el_h1t class=cd-block__unit>Hrs</span></span><span class=cd-block__time><span id=el_m1> 34</span><span id=el_m1t class=cd-block__unit>Mins</span></span><span class="cd-block__time cd-block__time--sec"><span id=el_s1> 22</span><span id=el_s1t class=cd-block__unit>Secs</span></span></a></div><script type="text/javascript"> et=1743543443; function f0(d){return TAD.ld[d.getUTCDay()]+', '+d.getUTCDate()+' '+TAD.lm[d.getUTCMonth()]+' '+d.getUTCFullYear()+', '+p2(d.getUTCHours())+':'+p2(d.getUTCMinutes())+':'+p2(d.getUTCSeconds());} function f1(d){return TAD.ld[d.getUTCDay()]+', '+d.getUTCDate()+' '+TAD.lm[d.getUTCMonth()]+' '+d.getUTCFullYear()+', '+p2(d.getUTCHours())+':'+p2(d.getUTCMinutes());} cks={"el":{"t":[{"o":0,"a":"UTC"}],"f":f1,"c":{"t":1757258905000,"z":1,"u":1}}}; TAD=window.TAD||{};TAD.lm=['January','February','March','April','May','June','July','August','September','October','November','December'];TAD.ld=['Sunday','Monday','Tuesday','Wednesday','Thursday','Friday','Saturday']; </script><p class="mgt10 h3"><a href="/eclipse/lunar/2025-september-7">Total Lunar Eclipse</a></p><p class=mgt0>7 Sep 2025, 15:28:25 <span class=soft>UTC</span> … <a href="/eclipse/lunar/2025-september-7">See more</a></div><div class="clip-block clip-block--picker"><h3 class=clip-block__title><a href="/eclipse/in.html">Eclipse Lookup</a></h3><form action="/eclipse/in/" class="bn-header__searchbox picker-city noprint"><input type=search autocomplete=off class=picker-city__input placeholder="Search for city, state or country…" onfocus="ifc(this,'ci',1,15,{"pre":"/eclipse/in/"})" name=query /><button type=submit class=picker-city__button title=Search><i class="i-font i-search"></i></button></form></div><div class="clip-block clip-block--list"><div class=blk-series><h3 class="blk-series__title clip-block__title">Lunar Eclipses</h3><ol class=blk-series__list><li class="blk-series__item "><a href="/eclipse/next-lunar-eclipse.html" class=blk-series__item-link> When Is the Next Lunar Eclipse? </a></li><li class="blk-series__item "><a href="/eclipse/total-lunar-eclipse.html" class=blk-series__item-link> Total Lunar Eclipse </a></li><li class="blk-series__item "><a href="/eclipse/why-does-moon-look-red-lunar-eclipse.html" class=blk-series__item-link> Why Does the Moon Turn Red? </a></li><li class="blk-series__item "><a href="/eclipse/partial-lunar-eclipse.html" class=blk-series__item-link> Partial Lunar Eclipse </a></li><li class="blk-series__item "><a href="/eclipse/penumbral-lunar-eclipse.html" 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