Here's how the astronomical phenomenon influences our planet—from the length of our seasons to the way Earth moves through ...

The NASA Artemis II mission, set to lift off as soon as February, will mark the first time astronauts have aimed to venture ...

Kicking off the year’s cosmic wonders is the moon, drawing the first astronauts to visit in more than 50 years as well as a ...

The 2026 calendar has a few major standouts: a late-night total lunar eclipse, a particularly promising Perseid meteor shower ...

Scientists believe Mars once looked very different from the cold, dry world it is today, and MAVEN was launched to ...

The Ursids will peak around the time of the winter solstice under dark skies with chances of enhanced meteor activity.

Comet 3I/ATLAS is a rare visitor passing briefly through our solar system. Here’s how to find it in the night sky—and what ...

Everyone's favorite interstellar comet, 3I/ATLAS, flew past Earth overnight, coming within about 168 million miles (270 million kilometers) of our planet.

Comet 3I/ATLAS, the third interstellar object ever detected, reached its closest point to Earth overnight from Thursday to Friday (Dec. 18 to 19), and it remains in a good viewing position tonight.

Comet 3I/ATLAS will be closest to Earth around 1 a.m. ET Friday, Dec. 19, according to Space.com, citing calculations from ...