This strange exoplanet, located 140 light-years away from Earth in the constellation Pegasus, appears to be rapidly falling ...

Astronomers have spotted a small rocky planet that orbits perilously close to its host star disintegrating as its surface is ...

"The extent of the tail is gargantuan, stretching up to 9 million kilometers [5.6 million miles] long," said MIT astronomer Marc Hon.

Comet SWAN, hailing from the Oort Cloud beyond Pluto, has been visible through telescopes and binoculars over the past few weeks with its streaming tail, but experts said it may not have survived ...

Sign up for CNN’s Wonder Theory science newsletter. Explore the universe with news on fascinating discoveries, scientific advancements and more. When a new comet ...

A dazzling new comet might have just fallen apart before our eyes – just weeks after its discovery. The bright green comet, named C/2025 F2 (SWAN), sparked excitement among stargazers after it ...

When a new comet appears in the sky, there is often excitement. But things don’t always end well for the ancient celestial objects, made of ice, frozen gases and rock, as they near the sun ...

A disintegrated comet has left behind a glowing dust cloud—here’s how to spot it before it vanishes from the northern sky. Scottish journalist and lifelong sports fan who grew up in Edinburgh ...

Scientists from NASA’s Goddard Center for Astrobiology observed the comet C/2014 Q2–also called Lovejoy–and made simultaneous measurements of the output of H2O and HDO, a variant form of water.

A newly-discovered comet is currently hurtling towards the sun and could be visible to UK stargazers. The unexpected comet is named C/2025 F2 (SWAN) after it was first spotted by through the SWAN ...

Chinese skywatchers first recorded the event during the 7th century B.C. On our planet’s own orbit, we pass through a number of these comet tail clouds every year. When bits of the comet debris ...