More than twice the expected amount of novae have been found popping off along the jet from M87’s supermassive black hole.

The bright, naked-eye star Betelgeuse is well known for its variations — some of which may be caused by an unseen companion ...

A waning Moon brings out deep-sky objects, Comet Tsuchinshan-ATLAS still stuns, and moons of Saturn and Jupiter stand out in ...

The crew spent nearly eight months aboard the International Space Station conducting more than 200 scientific experiments.

The latest X-ray observatory found a warped black hole disk and a supernova spewing iron — and it’s just getting started ...

The SpaceX Crew Dragon Endeavour, now set to splash down this week, has racked up the most time spent in space by a crewed ...

Comet C/2023 A3 — better known as Tsuchinshan-ATLAS — is fading in brightness as it speeds away from the Sun and Earth in the ...

In this episode, Dave Eicher invites you to observe one of the major meteor showers of the year. It’s called the Orionids ...

Astronomers hypothesize that a long-ago dwarf galaxy dubbed Loki may have merged with the Milky Way when our galaxy was in ...

There’s still time to catch Comet C/2023 A3 (Tsuchinshan-ATLAS) in the west after sunset, even as it pulls away from the Sun and Earth on its way back toward the outer reaches of the solar system.