Sign Up for Our Amazing Newsletter!
A daily update by email. Science news, great photos, sky alerts.
Thank you! Your submission has been received!
Oops! Something went wrong while submitting the form.
Auroras on rogue planet in a new alien weather report
Using the Webb space telescope, astronomers have observed auroras on rogue planet SIMP 0136. The giant starless world is about 20 light-years away from Earth.
October 2, 2025
World Space Week is October 4 to 10. Find events here
World Space Week dates back to 1999 and runs every year from October 4 to 10. This year, the theme is living in space. Find events near you here.
October 2, 2025
See the best deep-sky photos of September 2025 here
Enjoy this gallery of deep-sky photos for September 2025 from our EarthSky community. If you have a great photo to share, send it in, too. We love to see them!
October 2, 2025
Are Humberto and Imelda undergoing the Fujiwhara effect?
Humberto and Imelda are “crowding” the Atlantic basin. They are relatively near each other. Humberto appears to be exerting a “pull” on Imelda.
October 1, 2025
Astronomers find 2 galaxies linked by a huge gas bridge
Astronomers have discovered 2 dwarf galaxies linked by a colossal hydrogen gas bridge, which spans an enormous 185,000 light-years.
October 1, 2025
Fat Bear Week 2025: The winner is crowned!
Meet Chunk, the winner of Fat Bear Week 2025! Despite a broken jaw, this mighty bear overcame 11 opponents for his 1st victory in the annual competition.
October 1, 2025
Proxima Centauri discovered 110 years ago
Astronomers thought Alpha Centauri was the closest star to Earth. Then they found a smaller, fainter star that's even closer. They named it Proxima Centauri.
October 1, 2025
Sun activity archive for October 2025
Sun activity archive for October 2025. A daily record of flaring, big filaments and prominences, and other sorts of activity, on our local star.
October 1, 2025
October birthstone: Colorful opal and tourmaline
Take your pick: the October birthstone is either the striking iridescent opal or the many-colored tourmaline. Learn the lore of these pretty gemstones here.
October 1, 2025
Exoplanets are worlds orbiting other stars
Exoplanets are worlds orbiting distant stars. Watch a video with an astronomer who studies them. Learn the history of our knowledge of exoplanets, and more.
October 1, 2025
