Beautifully captured against a starry sky, Comet C/2024 G3 (ATLAS) — dubbed by some as the "Great Comet of 2025" — shines brightly after its last approach to the sun for hundreds of thousands of years ...

These tails form because comets have ice in them, while asteroids supposedly do not. When a comet gets close to the Sun, these ices heat up and sublimate, which means they turn from ice into gas.

It has long been assumed that the gases of a comet tail are pushed away from the comet by the pressure of light from the sun. It now appears that many tails are caused by a wind of charged particles ...

The nuclei of most comets are about 1-2 miles across ... reflection of sunlight on the dust streaming from the comet, and a fainter ion tail, which is composed of electrically charged atoms ...

The boiling is so intense, that the world has developed a comet-like tail stretching 350,000 miles behind it, scientists announced on Tuesday. Don't retire on this planet The planet, called WASP ...

From the Stonehenge to the Swiss Alps, the world has its camera trained to the comet’s tails of dust and gas as it makes it close approach. Comet NEOWISE will be the closest to Earth on July 23 ...

Following perihelion, the comet showed signs of disintegration but still put on a dazzling display of bright tails. As it heads toward the edge of the solar system, it will slowly start to fade.

These tails form because comets have ice in them, while asteroids supposedly do not. When a comet gets close to the Sun, these ices heat up and sublimate, which means they turn from ice into gas. The ...