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

Comets are icy bodies that orbit the Sun, often referred to as ‘dirty snowballs’. Learn about their composition, formation, ...

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

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 ...

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.

In new photos and videos shared online, the cosmic snowball now appears to have grown a rare second tail. Relative positions of the Earth, the comet and the Sun allow us to see sunlight on larger ...

Asteroids are the ancient remnants of our solar system's birth, rocky fragments that never formed into planets. Most of these ...

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 ...

The presence of the poisonous gas cyanogen in the tail of the Morehouse comet gave rise to the suggestion that serious consequences might follow the passage of the comet through the earth's ...

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