Blood Moon Rising: Everything You Need to Know About the Last Total Lunar Eclipse Until 2029

The March 3, 2026 total lunar eclipse will paint the Moon copper-red for 58 breathtaking minutes — and some viewers may witness an “impossible” atmospheric phenomenon.

Published: March 1, 2026 | Reading time: 8 minutes

Image Credit: NASA

On the morning of March 3, 2026, something extraordinary will unfold in the sky above billions of people. The full Moon will drift into the enormous shadow cast by our planet and, rather than vanishing into darkness, will transform into a glowing orb of deep copper and crimson. This is a total lunar eclipse — and it will be the last one visible anywhere on Earth until New Year’s Eve 2028.

For 58 minutes, the Moon will sit entirely within Earth’s darkest shadow, illuminated only by the ghostly red light of every sunrise and sunset happening simultaneously around our planet’s rim. It’s a phenomenon that has captivated human beings for millennia — and one that modern science has revealed to be even more remarkable than our ancestors imagined.

This blog post is your comprehensive guide to tomorrow’s Blood Moon: the science behind the red glow, when and where to watch, an “impossible” atmospheric trick some viewers may witness, and why this particular eclipse matters more than most.

What Exactly Is a “Blood Moon”?

A total lunar eclipse occurs when the Sun, Earth, and Moon align so precisely that our planet completely blocks direct sunlight from reaching the lunar surface. Unlike a solar eclipse, where the Moon’s shadow falls on Earth, a lunar eclipse casts Earth’s shadow onto the Moon. This alignment can only happen during a full Moon phase, and only when the Moon crosses one of the two points (called nodes) where its orbital path intersects the plane of Earth’s orbit around the Sun.

You might expect the Moon to simply go dark. But something far more beautiful happens. As sunlight passes through the thick ring of Earth’s atmosphere, shorter wavelengths — blue and violet light — scatter away in all directions (this is the same mechanism that makes our daytime sky appear blue). The longer red and orange wavelengths, however, are bent or refracted around Earth’s curved edge and continue forward into the shadow cone. This refracted crimson light is what reaches the Moon, bathing it in the warm, eerie glow that gives the “Blood Moon” its name.

Imagine standing on the Moon during totality. You would see Earth as a dark disc rimmed by a blazing ring of orange-red light — the combined glow of every sunrise and every sunset happening on our planet at that moment, projected onto the lunar landscape around you. In fact, the Blue Ghost lunar lander captured something close to this view during the total lunar eclipse of March 14, 2025.

Why Every Blood Moon Looks Different: The Danjon Scale

Not all Blood Moons are created equal. The exact shade of red varies from eclipse to eclipse, and astronomers measure this using a system called the Danjon Scale, named after French astronomer André-Louis Danjon. The scale runs from L0 (very dark, nearly invisible, with grey-brown tones) to L4 (bright copper-orange with a bluish edge to the shadow).

The primary factor determining the colour is the state of Earth’s atmosphere at the time of the eclipse. Recent volcanic eruptions inject aerosols and fine particulate matter high into the stratosphere, which scatter additional light and can produce dramatically darker, deeper red eclipses. Conversely, a relatively clean atmosphere yields brighter, more orange-copper hues. Major eruptions like Mount Pinatubo in 1991 produced some of the darkest Blood Moons in modern history.

For the March 3, 2026 eclipse, the Danjon number will depend on atmospheric conditions at the time. With no major volcanic events dominating the stratosphere currently, observers can expect a moderate to bright copper-red display — but this is always one of the delightful uncertainties of eclipse watching. You won’t know the exact colour until you see it.

Eclipse Timeline: When to Watch

The entire eclipse event spans approximately 5 hours and 39 minutes from the first penumbral dimming to the final exit from Earth’s shadow. However, the truly dramatic portion — the partial and total phases — lasts roughly two and a half hours. Here are the key moments (all times in UTC, which is the universal reference point):

• Penumbral eclipse begins: 08:44 UTC — The Moon enters the faint outer shadow. Dimming is subtle and hard to detect visually.

• Partial eclipse begins: 09:50 UTC — The Moon enters the dark umbral shadow. A visible “bite” appears on the lunar disc.

• Totality begins: 11:04 UTC — The Moon is fully immersed. The Blood Moon appears.

• Maximum eclipse: 11:33 UTC — The Moon is deepest within the shadow. Peak colour intensity.

• Totality ends: 12:02 UTC — The Moon begins emerging from the umbra.

• Partial eclipse ends: 13:17 UTC — The Moon is fully clear of the dark shadow.

Local Viewing Times

• US Pacific Time: Totality from 3:04–4:03 AM PT. Full eclipse visible from start to finish — among the best US viewing.

• US Eastern Time: Totality begins around 6:04 AM EST, but the Moon will be very low on the western horizon and setting during totality. Maximum eclipse occurs after moonset for most East Coast locations.

• Hawaii: 1:04–2:02 AM HST. Excellent viewing conditions with the Moon high in a dark sky.

• Australia & New Zealand: Evening of March 3 local time. The Moon rises already entering the shadow — a dramatic moonrise eclipse.

• East Asia (Japan, Korea): Evening of March 3. Full eclipse visible in excellent conditions.

• UK & Europe: Unfortunately not visible. The Moon will be below the horizon for the entire event.

The “Impossible” Selenelion: Seeing the Sun and Eclipsed Moon at the Same Time

Here is perhaps the most fascinating aspect of this particular eclipse. For observers in the eastern United States and Canada, there will be a brief window — lasting only 1 to 3 minutes — when something geometrically impossible appears to happen: you may be able to see the rising Sun and the eclipsed Blood Moon in the sky at the same time.

This phenomenon is called a selenelion (also spelled selenehelion). The geometry of a lunar eclipse requires the Sun, Earth, and Moon to be in a near-perfect line, with Earth in the middle. Logically, if the Sun is above your eastern horizon, the Moon must be below your western horizon — they should be mutually exclusive.

But Earth’s atmosphere acts as a lens. Atmospheric refraction bends light upward, causing celestial objects near the horizon to appear slightly higher than their true geometric position. This effect is strong enough to “lift” both the Sun and the Moon above the horizon simultaneously for a few fleeting minutes, even though one should technically be hidden.

To observe the selenelion, you need both a clear eastern horizon (for the sunrise) and a clear western horizon (for the setting Blood Moon). Elevated locations with unobstructed sightlines in both directions offer the best chance. The effect will be most pronounced in cities along the US Eastern Seaboard, from Boston to Miami, as well as across Eastern Canada.

Why This Eclipse Matters: The Last Blood Moon for Nearly Three Years

After March 3, there will be no total lunar eclipses anywhere on Earth until December 31, 2028 — a gap of nearly three years. There are no total lunar eclipses at all in 2027. The August 28, 2026 lunar eclipse will only be partial (93% coverage). This makes the March 3 event genuinely significant for anyone who enjoys watching the sky.

This eclipse is also part of an intriguing pattern. It’s the third in an almost-tetrad: a series of four consecutive eclipses that came close to all being total. The March and September 2025 eclipses were both total, this one completes the trio as total, and the August 2026 eclipse just misses totality by a few percentage points. Eclipse tetrads became a cultural talking point during 2014–2015, and this near-miss carries some of that same energy.

The eclipse belongs to Saros series 133, a cycle of eclipses that repeats every 18 years, 11 days. This particular saros has been producing total lunar eclipses since December 28, 1917, and will continue doing so until August 3, 2278. If you caught the February 21, 2008 total lunar eclipse, you witnessed the previous member of this same family.

The “Blood Worm Moon”: What’s in a Name?

The March full Moon is traditionally called the Worm Moon, a name rooted in Native American and colonial-era traditions. It marks the time of year when the ground begins to thaw and earthworms reappear, signalling the return of spring. Because this year’s Worm Moon coincides with a total lunar eclipse, it’s been dubbed the “Blood Worm Moon” — a wonderfully evocative name for what promises to be a spectacular celestial event.

During the eclipse, the Moon will be positioned in the constellation Leo, sitting beneath the lion’s hind legs. As the Moon’s brightness dims during totality, surrounding stars and constellations that are normally washed out by the full Moon’s glare will become easier to spot — a lovely bonus for stargazers.

How to Watch: Your Viewing Checklist

One of the great things about lunar eclipses is their accessibility. Unlike solar eclipses, which require special protective eyewear, a lunar eclipse is completely safe to observe with the naked eye. Here’s how to make the most of the experience:

• No equipment needed. Your eyes are enough. Binoculars will reveal beautiful detail on the lunar surface, and even a small telescope will show the subtle colour gradations across the disc during totality.

• Find darkness. Get away from streetlights and urban light pollution if possible. A darker sky will make the red glow more vivid and let you see the surrounding stars emerging as the Moon dims.

• Check your horizon. Especially for East Coast US observers, the Moon will be low in the west during totality. Make sure you have a clear, unobstructed western horizon.

• Dress warmly. March mornings are cold in much of North America. You’ll be standing still and looking up for a while — layer up.

• For photography: Use a tripod, set a long exposure (1–4 seconds during totality), and experiment with ISO settings. Smartphones on modern night modes can capture surprisingly good results. The key is stability — any hand shake will blur the image.

• Check the weather. Cloud cover is the only thing that can ruin the view. Check your local forecast the evening before and be prepared to drive to a clearer location if needed.

What’s Next in the Sky

If you enjoy tomorrow’s eclipse, keep looking up in the days that follow. On March 8, Venus and Saturn will appear in close conjunction in the evening sky — a beautiful pairing just five days after the eclipse. And while 2026 won’t bring another total lunar eclipse, it does deliver a total solar eclipse on August 12 across Greenland, Iceland, and Spain, followed by a deep 93% partial lunar eclipse on August 28.

But for now, set your alarm, step outside, and watch our planet’s shadow paint the Moon red. It’s one of the most beautiful, most accessible astronomical events there is — and after tomorrow, you’ll be waiting nearly three years for the next chance.