The ion tail appeared as Comet C/2025 R3 PanSTARRS was about 45 million miles from Earth (72 million kilometers) during its ...

Learn more about the interstellar traveler, Comet 3I/ATLAS, and what researchers know about its place of origin.

Astronomers analyzed the vapors coming off the comet when it neared the sun and found it had a lot of "heavy" water. That ...

Having survived its closest pass to the sun during perihelion on April 19, Comet PanSTARRS is now en route to its nearest ...

NASA's Perseverance rover on Mars has collected its 24th sample of Jezero Crater. The 'Comet Geyser' sample is "great for ...

Measurements of this interstellar comet’s molecular makeup show an excess of heavy water molecules that is dramatically ...

The interplanetary comet 3I/ATLAS is remarkably rich in a specific type of water that contains deuterium, meaning it came ...

An ancient comet, 3I/Atlas, which journeyed through our solar system last year, is believed to have originated in a ...

A new study suggests that the comet that rambled past us from another star last year likely originated in a cold, isolated ...

NASA astronaut Jessica Meir captured a stunning photo of the Lyrids meteor shower from the International Space Station.

Spring's first meteor shower will peak this week. Here's how and when to see one of the oldest recorded celestial events. (AP ...

Active since last week, the Lyrids meteor shower is expected to reach peak viewing tonight. By Katrina Miller Katrina Miller ...