Having made its closest approach to the sun on Wednesday October 29, comet 3I/ATLAS will soon be visible from Earth ...

Perihelion for 3I/ATLAS takes place on Oct. 30, when the interstellar interloper will be 1.35 astronomical units (125 million ...

At the end of October Europa Clipper will fly in line with 3I/ATLAS’ ion tail — but will any of the charged particles reach the spacecraft, and will the spacecraft be ready to receive them?

Researchers rarely get a glimpse of an interstellar object up close like 3I-ATLAS, so they have jumped on the opportunity to learn about its composition, which can reveal how planet systems are made.

Comet Neowise soars in the horizon of the early morning sky in this view from near the grand view lookout at the Colorado National Monument west of Grand Junction, Colo., on Thursday. The newly ...

There’s been a new comet in the sky over the past few weeks, but now is the prime time to see it for yourself.

Prepare to witness a celestial spectacle like no other as a gigantic comet dubbed the "devil comet" is poised to make a rare appearance in Earth's night sky next summer for the first time in seven ...

As Chile and Argentina witnessed the total solar eclipse on Dec. 14, 2020, unbeknownst to skywatchers, a little tiny speck was flying past the Sun — a recently discovered comet. This comet was first ...