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The 1st extragalactic planet?
Scientists believe they might have detected the 1st extragalactic planet by examining x-rays from M51, the famous Whirlpool Galaxy.
October 27, 2021
Asteroid Bennu’s boulder mystery solved
Asteroid Bennu's boulder mystery has now been solved, scientists say. Highly porous rocks explain the abundant large rocks but lack of fine sand-like regolith.
October 27, 2021
Andromeda galaxy photos, 2021
Enjoy a photo gallery of the best Andromeda Galaxy images from EarthSky readers! The Andromeda Galaxy is a great observing target on fall evenings.
October 27, 2021
The fate of Arctic sea ice
Our warming world means the fate of Arctic sea ice could be in peril, along with the plants, animals and rich ecosystem that call it home.
October 26, 2021
Heads up! Famous comet 67P/C-G nearly closest
Famous comet 67P/C-G will sweep closest to Earth in November. Finder charts help you locate this comet before it leaves for another 193 years.
October 26, 2021
Watch the Progress 79 cargo launch October 27
On October 27, 2021, Russia’s uncrewed Progress 79 cargo craft will launch from the Baikonur Cosmodrome in Kazakhstan. Here’s how to watch.
October 26, 2021
True polar wander: A shift 84 million years ago
The fossil magnetism of rocks in Italy revealed true polar wander - a major shift in Earth's outer shell relative to its spin axis - 84 million years ago.
October 25, 2021
See 42 of the largest asteroids in new images
Astronomers with the European Southern Observatory (ESO) have obtained new and more detailed images of 42 of the largest asteroids in the main asteroid belt.
October 24, 2021
New fossil discovery may add 100s of millions of years to animal evolution
A new fossil discovery may be the oldest animal fossil on record. The 890-million-year-old sponge would push back the evolutionary timeline for animals.
October 24, 2021
Grus the Crane, home to ‘the bright one’
Grus the Crane is a constellation best seen from the Southern Hemisphere that has one notably bright star whose name actually means, "the bright one."
October 23, 2021
