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

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.

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

A newly discovered comet, called C/2025 F2 (SWAN), may have disintegrated. But the remnants are still visible.

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

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

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 ...

MIT astronomers have found a Mercury-sized planet, located 140 light-years away, that is disintegrating rapidly due to its ...

Photos show that comet C/2025 F2 (SWAN) experienced a "major eruption," causing it to become temporarily brighter. However, ...