Earth may have a moon today because a nearby neighbor once crashed into us, a new analysis of Apollo samples and terrestrial ...

To catch the Geminids peak, look to the eastern sky all evening on Dec. 13 and Dec. 14. The meteors will appear near the bright planet Jupiter. With the darkest possible skies, you could see up to 120 ...

On October 30, 2025, scientists around the world watched as the interstellar comet 3I/ATLAS made its closest approach to the ...

Rather than big bolts of lightning as seen on Earth, NASA’s Perseverance rover recorded audio of small zaps similar to those ...

An international team including astronomers from the University of Geneva (UNIGE) and the National Center of Competence in ...

This month will bring some striking celestial sights, including one of the year’s best meteor showers and a glowing ...

NASA’s Juno spacecraft captured a rare dark-rayed crater on Ganymede, offering fresh clues about the moon’s icy surface, ...

Harvard astrophysicist Avi Loeb warns that the interstellar object 3I/ATLAS might be a deliberately steered alien probe—an ...

Jupiter's moon Io may host alien life in protected lava tubes. Now, Avi Loeb claims the anomalous interstellar object ...

Published in Nature Astronomy, the findings represent a first: while helium escape has been observed before, this is the ...