Two comets, C/2025 A4 (Lemmon) and C/2025 R2 (SWAN), are about to reach their closest approach to Earth and you can watch the ...

Ancient rocks from Greenland, Canada and Hawaii preserve a rare chemical fingerprint that may come from the Earth before the ...

The mysterious interstellar object soaring through our Solar System is set to slip behind the sun starting tomorrow. A ...

Scientists have recently proposed the existence of “Planet Y,” a hidden Earth-sized world that could be lurking in our solar ...

The ice giants remain some of the most interesting places to explore in the solar system. Uranus in particular has drawn a ...

This comet is best seen through a telescope or binoculars, but it may be visible to the unaided eye for the next two weeks!

NASA says the meteor shower is best viewed during the pre-dawn hours, but the sweet spot is between midnight and 2 a.m. Make ...

In a recent paper that has yet to be peer reviewed, a team of astronomers used the Keck data to confirm “previously reported ...

Mysterious interstellar object 3I/ATLAS puzzles experts, is it a natural comet from beyond the stars or an alien probe ...

A planetary scientist who has participated in analog missions describes their value for planning space exploration – and ...

Astronomers are abuzz with the discovery of a rogue planet, 2MASS J05325346+0919037, which is set to pass within 0.05 ...

Comet Lemmon, a rare astronomical event that won’t happen again for 1,000 years, is set to light up our skies later this week ...