New simulations have narrowed down where the newly discovered interstellar comet 3I/ATLAS likely came from, revealing it could be more than 3 billion years older than the solar system.

Observations of Exoplanet WASP-69b has uncovered a 350,000-mile-long comet-like tail. The tail is a result of its escaping ...

The coma and long tail of comet Tsuchinshan-ATLAS, also called C/2023 A3 (Tsuchinshan–ATLAS), is currently shining at magnitude +0.5. That's well within the grasp of the human eye.

Don't miss seeing Comet A3 in Mississippi. It won't be back for 80,000 years 'Comet tails can reach for tens to hundreds of millions of miles long.

And as it decays, it is leaving behind a tail of matter like a comet. The planet BD+05 4868 A is located 140 light-years away, and is around the mass of Mercury.

Planet’s ‘tail’ is millions of miles long, researchers say. However, when looking at the host star of BD+05 4868 A, they found that its brightness dip took much longer to return to normal.

Astrophotographer Miguel Claro captured Comet C/2023 A3 (Tsuchinshan-ATLAS) from the Dark Sky Alqueva reserve in Portugal on Oct. 13, 2024 as the comet was displaying an 'anti-tail.' ...

The comet is about 2 miles in diameter, accompanied by a tail stretching out for some tens of millions of miles. Comets are frozen leftovers from the formation of the solar system composed of dust ...

Comet Atlas has a huge tail - and an anti-tail One thing viewers will notice immediately is the comet's tail of ice and dust, which is believed to be as long as 18 million miles.