A Russian space capsule has undocked from the International Space Station (ISS) to take three astronauts back to Earth – two of them having completed a record-long stay on the orbiting laboratory.

Autumn brings longer, cooler and clearer nights. Summer’s bright constellations and dense star clouds of the Milky Way give ...

A3 Tsuchinshan-Atlas is rapidly approaching the Sun. After meeting with the hot star, the flying traveler will cross the ...

Astronauts worked together to get these jaw-dropping pictures of a comet plunging to Earth. Don Pettit, NASA’s oldest active ...

NASA's DART mission in 2022 dramatically altered an asteroid's orbit, potentially sending debris toward Earth and Mars, ...

Right now, south of the equator, amateur astronomers are watching a comet that's just emerged from behind the sun. Soon, it ...

Astronomers and sky watchers have their fingers crossed that an approaching comet could put on a nighttime show on Earth next ...

NASA astronaut Matthew Dominick got a front row seat to Comet Tsuchinshan-ATLAS from the cupola on the International Space ...

Engaging articles, breathtaking images and expert knowledge ...

In Japan, Autumnal Equinox Day is a national holiday. In Japanese, it’s known as Shubun no Hi (秋分の日), according to Coto ...

Astronomers have made important progress in comprehending the intricate dynamics of the galaxy cluster Zwicky 8338 (Z8338) by using NASA's Chandra X-ray Observatory. They found two streams of ...