Astronomers have spotted a distant planet shedding matter with each orbit around its host star, generating a comet-like tail ...

A disintegrated comet has left behind a glowing dust cloud—here’s how to spot it before it vanishes from the northern sky.

NEW YORK — A newly discovered green comet tracked by telescopes has likely broken apart as it swung by the sun, dashing hopes ...

Astronomers discovered a planet that orbits its star so closely that its surface is being scorched into magma and vaporizing ...

But as the comet neared the sun, it broke apart into chunks until it finally evaporated, according to NASA. C/2024 S1 was a sungrazer, a comet that passes within a distance of about 850,000 miles ...

NASA launched a bold mission: crash a spacecraft into a comet using the force of 5 tons of TNT. The result wasn’t destruction ...

A recently-discovered comet could have appeared in the night sky with the naked eye, but its passage near the sun has turned ...

The planet, recently renamed BD+05 4868 Ab, is losing its outer layer piece by piece, with a comet-like trail of dust left ...

This strange exoplanet, located 140 light-years away from Earth in the constellation Pegasus, appears to be rapidly falling ...

Lindley Johnson has been a pioneer in blueprinting warning and response scenarios to any potential impact of Earth by an ...

Comet C/2025 F2 (SWAN) was discovered April 1 by an Australian amateur astronomer who was searching through data from the ...