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EarthSky
@earthskyscience.bsky.social
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Updates on your cosmos and world.
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earthskyscience.bsky.social
Spot #Sculptor these November evenings! This faint #constellation is home to the South Galactic Pole and can be seen low on the southern horizon from the Northern Hemisphere. A tiny triangle of stars, but a huge window beyond our #MilkyWay. Read more: 🌌🔭
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📸 EarthSky.org.
Sky chart showing triangular constellation Sculptor and the star Fomalhaut at its top right.
November 27, 2025 at 1:00 AM
earthskyscience.bsky.social
A golden sunrise in the high country ... Christoph Stopka in Westcliffe, Colorado, captured this beautiful #sunrise at the foothills of the #RockyMountains last Friday. Thank you, Christoph! 🌄📸
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Go to EarthSky Community Photos to see more great images:

buff.ly/DpWJ0d0
Mountain peak partially bathed in sunlight, with low-lying fog and clouds in the foreground.
November 26, 2025 at 11:00 PM
earthskyscience.bsky.social
Last week, scientists said they've identified what they call the 5 Great Forests of Mesoamerica. These forests, which stretch from southern Mexico to northern Colombia, are critical to the survival of migratory songbirds. Read about the 5 great forests:
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📸 Rhododendrites/ Wikimedia.
A small yellow and black bird on a tree branch.
November 26, 2025 at 6:01 PM
earthskyscience.bsky.social
NASA’s OSIRIS-APEX spacecraft made a close flyby of #Earth on Sep. 23, 2025. This gravity assist will help the spacecraft adjust its trajectory toward the infamous asteroid #Apophis, which it is set to reach in 2029. Yesterday, NASA shared breathtaking images of the flyby:
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📸 NASA.
Spacecraft parts at bottom, and close view of Earth, with many white clouds visible.
November 26, 2025 at 4:30 PM
earthskyscience.bsky.social
While activity on the Earth-facing side of our star is currently low, there seems to be drama on the far side! Around 20 UTC last night we observed a stunning prominence of solar material and magnetic fields over the northeastern horizon. Read today's #sun news at: buff.ly/XLF6yzj

📸 NOAA/ GOES.
November 26, 2025 at 3:30 PM
earthskyscience.bsky.social
Did you know? A large rocky body - known as #Theia - slammed into the early #Earth about 4.5 billion years ago. But where did Theia come from? A team of researchers in Germany and Chicago said that Theia likely originated closer to the sun than Earth. 🔭
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📸 MPS/ Mark A. Garlick.
Rocky planet with many bright glowing spots and craters. A smaller rocky body is colliding with it, with the sun in the distance.
November 26, 2025 at 2:30 PM
earthskyscience.bsky.social
Tameem Altameemi captured this image of the #Soulnebula from the UAE and wrote: "I noticed a striking dark feature that resembles a lost #astronaut drifting within the #nebula’s glowing clouds, a purely visual impression, adding a human-like touch to this cosmic landscape." Thanks!
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Brownish and light blue clouds in deep space, with the figure of a human in the bottom.
November 26, 2025 at 1:00 AM
earthskyscience.bsky.social
Hoot, hoot! Tim Rubbert saw this great gray #owl in northwestern Montana on Monday. Thanks for sharing your photo with us, Tim! 🦉📸
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Do you have an image of your own to share? Submit it here:
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Go to EarthSky Community Photos to see many more images:

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Large owl with a round face and yellow eyes flying over a grassy pasture.
November 25, 2025 at 11:00 PM
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We’ve never needed good #science more than we do right now. Support #EarthSky in 2025 and help us keep it going strong. Plus ... with any #donation of $100 or more, we'll send you a FREE 2026 EarthSky Lunar Calendar! 🌎🌌🚀🔭

Visit here for more information on how to help!
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Cartoon of astronaut floating over and touching a yellow moon with craters, in deep blue space with stars. Bold white text says 'We're over the moon for your support.'
November 25, 2025 at 9:01 PM
earthskyscience.bsky.social
This time of year is great for saying hello to everyone’s favorite #constellation: Orion the Hunter! Find #Orion now and enjoy it for months to come. No doubt, Orion is the easiest-to-identify of all constellations. Look for it in the eastern sky this month. 🌌🔭
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📸 EarthSky.org.
Star chart of constellation Orion with stars labeled. The Orion nebula is also labeled.
November 25, 2025 at 6:03 PM
earthskyscience.bsky.social
See the #moon pass through #Capricornus tonight! The waxing crescent moon will lie in the arrow-shaped constellation Capricornus the Sea-goat after sunset. They’ll set a few hours after sunset. You’ll need a dark sky to spot the stars of Capricornus. 🌒🌌🔭
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📸 EarthSky.org.
A thick crescent shape, the moon, moves among 7 small dots, the constellation Capricornus.
November 25, 2025 at 4:30 PM
earthskyscience.bsky.social
We had a minor geomagnetic storm last night, which created beautiful #auroras for folks at high latitudes. The exciting part? We could see more minor storms through November 27. If you’re in the right location, keep an eye on the sky! 🌍☀️

Read our daily sun news:
buff.ly/TusXyVX

📸 NOAA/ GOES.
Brownish sun with darker areas in the middle and a label that reads: coronal hole.
November 25, 2025 at 3:30 PM
earthskyscience.bsky.social
If there's #life on #Mars today, scientists think it's likely underground. Researchers in China say they've found the 1st #caves on Mars potentially created by water. Could they be homes for life, now or in the past? 🦠🔴🔭
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📸 J. Fowler/ Wikimedia/ M. Tarbell/ W. Fink/ Univ. of Arizona.
Underground cave with shafts of sunlight from openings in top, and small robotic rovers on the ground. Bold white text says 'Could water-carved caves on Mars be home to life?' Crater seen from above with deep round hole in its center. Description in white text on black background is below it.
November 25, 2025 at 2:30 PM
earthskyscience.bsky.social
The colorful #Embryonebula in Perseus ... Andy Dungan captured this beautiful image from near Cotopaxi, Colorado, on Sunday. Thank you, Andy! #nebula 🌌🔭📸
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See more great images, and submit your own recent photos, at EarthSky Community Photos:

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Bright bluish and reddish cloud-like formation in space, with stars and other dark "clouds" in the background.
November 25, 2025 at 1:00 AM
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Brrr, winter's coming! Karen Brookes in Gloucester, UK, sent us this photo of #icecrystals on the inside of her car's windshield on Friday. They look so delicate. Thank you! ❄️📸
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Go to EarthSky Community Photos to see more great images. And give a like to your favs!
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Long, linear branch-like formations of tiny, delicate ice crystals.
November 24, 2025 at 9:01 PM
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Your support = more #science, more stars, more wonder. Donate to #EarthSky and be part of something bigger. Plus ... with any #donation of $100 or more, we'll send you a FREE 2026 EarthSky Lunar Calendar! 🌎🌌🚀🔭

Visit here for more information on how to help!
buff.ly/q47QWBg
Cartoon of astronaut floating over and touching a yellow moon with craters, in deep blue space with stars. Bold white text says 'We're over the moon for your support.'
November 24, 2025 at 6:02 PM
earthskyscience.bsky.social
Saturn and Titan ... Guido Santacana in San Juan, Puerto Rico, captured this view of majestic #Saturn on Friday, just after its moon #Titan - the little dot on the right, just below the ring - had passed in front of it. Thank you, Guido! 🪐🔭📸
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See more great images:

buff.ly/wjemuid
Slightly flattened planet with a banded atmosphere and a ring around it seen edge-on. A tiny orangish dot is on the right edge of the planet, just below the ring.
November 24, 2025 at 4:30 PM
earthskyscience.bsky.social
For 2 seasons in Moreton Bay, Australia, researchers have attached suction-cup cameras to #humpbackwhale calves. The researchers said that the footage shows Moreton Bay is a critical nursery and rest area for humpbacks during migration. #whales 🐋
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📸 Stephanie Stack/ Griffith Univ.
A young whale with the top half of its body above the water.
November 24, 2025 at 2:30 PM
earthskyscience.bsky.social
No human has been near the #moon since Apollo 17 in December 1972. But that’s about to change. Artemis 2 could launch as early as next February, and its dress rehearsal is coming up. Read more: buff.ly/EX652iJ

📸 NASA/ NASA/ Kim Shiflett.
Multiple levels indoors with a tall rocket standing upright behind struts.
November 23, 2025 at 5:33 PM
earthskyscience.bsky.social
#Earth spins fast - at the equator, about 1,000 miles per hour (1,600 km per hour). And it rotates once every day. Yet you don’t feel Earth spinning. Why not? Read here: buff.ly/4flMxxT

📸 NASA.
Swirly blue and white half-lit Earth and the moon appear side by side in deep space against a black background.
November 23, 2025 at 5:03 PM
earthskyscience.bsky.social
That's a hard nope! What would happen if a small #blackhole passed through your body? A Vanderbilt University professor, Robert Scherrer, proposes an answer. Here's what would happen: buff.ly/TX5GJzT

📸 ESO/ L. Calçada.
Blue star glows in space as a dark circular black hole companion eclipses part of its surface.
November 23, 2025 at 4:33 PM
earthskyscience.bsky.social
Tonight after sunset watch for the waxing crescent #moon not far above the horizon in #Sagittarius. The glare will hide the stars of the Teapot asterism, which really is teapot-shaped. That's the direction of the galactic center. Read more: buff.ly/moaQbYD
Sky chart with 2 positions of crescent moon, the November 23 one in the midst of a labeled teapot-shaped group of stars.
November 23, 2025 at 4:15 PM
earthskyscience.bsky.social
The queen returns! 👑 At an approximate age of 75, Wisdom the #albatross returned this week to Midway Atoll National Wildlife Refuge for nesting season. She is the world's oldest-known bird.

Read about Wisdom at: buff.ly/MFkj4H9

📸 USFWS/ Jon Plissner.
Wisdom, standing among grass, is a white bird with black eyes and wings, and pale bill and legs.
November 23, 2025 at 4:03 PM
earthskyscience.bsky.social
An EarthSky community member, Frank Merenda in Fillmore, California, captured this image of #asperitas clouds on November 13. Thank you, Frank!

Read about asperitas, the newest-named form of cloud, at: buff.ly/zzFdbVv
Rippling gray asperitas clouds billow overhead as soft sunset light glows above trees and rooftops.
November 23, 2025 at 3:33 PM
earthskyscience.bsky.social
A comet with 3 bright lumps in the nucleus and text that reads: "Fragmentation of Comet 2025 K1 ATLAS. Eliot Herman caught these 3 fragments of Comet 2025 K1 ATLAS (not to be confused with our interstellar visitor Comet 3I/ATLAS) on November 19 from California.
November 22, 2025 at 8:00 PM