The planet orbits its host star in just 30.5 hours, losing a mass of material roughly equal to Mount Everest each time ...

Comet Nishimura came into NASA's STEREO-A spacecraft's field of view. The solar wind was interacting with the tail of the ...

NEW YORK (AP) — A newly discovered green comet tracked by telescopes has likely broken apart as it swung by the sun, dashing hopes of a naked-eye spectacle.

Currently, it displays the classic look for a bright comet, flaunting a starlike head and a prominent tail. As we crossed over from September into October, a consensus of observations reported on ...

Asteroids are the ancient remnants of our solar system's birth, rocky fragments that never formed into planets. Most of these celestial wanderers inhabit the asteroid belt between Mars and Jupiter, ...

The comet tail is still too dim to see with your eyes, but it is heading towards the sun and growing brighter every day. There will be two viewing windows for the comet over the coming weeks for ...

A view of Comet C/2023 A3 (Tsuchinshan–ATLAS), along with the faint anti-tail. Image: Michael Kieran As Comet C/2023 A3 (Tsuchinshan–ATLAS) barrels its way through space, some have gotten a ...

Halley’s comet swings near Earth every 75 years. But debris left by the comet leads to two major meteor showers annually.

trailed by a comet-like tail of mineral dust up to about 5.6 million miles (9 million km) long. About 5,800 planets beyond our solar system, called exoplanets, have been discovered since the 1990s.

Despite the clouds and moonlight, the comet was a magnificent sight. The brightness was 1m5 but the 10° tail was visible without any problem. A picture taken on Sunday by Austrian photographer ...