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We live in the golden era of Milky Way research.

There is no explanation for this kind of black hole in dwarf spheroidal galaxies.

Early Saturday morning, a total solar eclipse will darken skies at the bottom of the world.

The International Space Station dodged a fragment of a decades-old rocket body early Friday morning, continuing a stretch of space debris threats to the orbiting laboratory.

Phoning ET from home ...

New attraction promises to be part museum of the now, part simulated spaceport of the future.

Three teams led by Blue Origin, Nanoracks and Northrop Grumman will split $415 million.

"It's a Clark Kent level disguise for the climate crisis," McKay said.

There were 48 Starlink satellites on board, plus two Earth observation satellites for BlackSky Global.

Antarctica will see nearly two minutes of totality at most, with surrounding regions getting a partial view.

The comet will also be visible in binoculars in dark-sky conditions Friday (Dec. 3).

The scorching-hot GJ 367b is unlike anything in our own solar system.

SpaceX will launch its next stack of Starlink satellites from the East Coast tonight (Dec. 2) as part of a rideshare mission, and you can watch the action live online.

Spacewalkers restore redundancy for two-way voice and data between the space station and Earth.

RocketLab's next-generation Neutron rocket promises to take reusability to the next level with a 'hungry hippo' nose cone integrated into a first stage that returns to the launch pad ready to fly again like an aircraft.