Scientists have found unusually high heavy water levels in interstellar comet 3I/ATLAS. The finding suggests it formed in a ...

Elisha Sauers writes about space for Mashable, taking deep dives into NASA's moon and Mars missions, chatting up astronauts and history-making discoverers, and jetting above the c ...

It is the first of two meteor showers from Halley’s Comet that will be visible from Earth this year. Read more at ...

NASA and the European Space Agency spotted a cosmic object that was splitting apart before it exploded, something not a ...

Amentum is hiring roughly 100 workers for its COMET contract with NASA for Artemis missions at Kennedy Space Center, with a ...

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 ...

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

Comets are loose collections of ice, dust and frozen gases left over from the solar system's formation 4.6 billion years ago.

The next full moon of 2026 will be a rare one-of-two in the same month. Here's when and what to know about May's flower moon ...

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

Here's how to see Comet PanSTARRS in satellite images ahead of its close approach to Earth on April 26.