3I/ATLAS is an interstellar comet that has traveled from outside the solar system, with a diameter of 10 to 20 kilometers.

The known universe is full of shockingly huge things. Here are the largest planets, stars, galaxies, and structures we've ...

Amid the season with at least one meteor shower occurring every night, interstellar comet 3I/ATLAS may become visible to us in early November.

Daniel W.E. Green at the Central Bureau for Astronomical Telegrams, suggests that comet SWAN will hover near magnitude of +6, ...

My favorite planet, besides the one I live on, is on the rise in the low eastern sky during evening twilight. It’s Saturn and ...

Summer is officially over September 22, at 2:19 p.m. Time to hang up the surfboard, deflate the beach balls, stow the grill, ...

My favorite planet, besides the one I live on, is on the rise in the low eastern Pottsville sky during evening twilight. It’s ...

In total, Saturn is thought to have at least 274 moons, the greatest number of natural satellites in the solar system. After ...

The September 2025 solar eclipse falls on Amavasya, September 21–22. Check date, time, visibility, and zodiac-wise ...

Astronomers might be close to confirming the presence of an Earth-like atmosphere on an exoplanet for the first time, if more ...

For decades, astronomers have wondered whether Earth-like planets are rare gems or commonplace across the stars. Recent ...