Old satellites and other space junk fall toward Earth every day, and the shock waves they create could be used to track their trajectories, according to new research.

Veteran NASA astronaut Suni Williams announced her retirement Tuesday. Her extended mission to orbit due to the troubled Boeing Starliner test flight was her final foray.

Four astronauts are set to depart the International Space Station Wednesday amid a health concern. The unprecedented early departure will leave behind a skeleton crew.

NASA’s upcoming Artemis II flight will be the first crewed lunar mission in over 50 years, but it will not land on the moon. Here’s why.

Optical proof of a tiny companion orbiting supergiant star Betelgeuse is hard to come by. Hubble just spotted new evidence.

Scientists have developed a way to generate tiny amounts of solar energy at night. It’s true potential could be in space.

Four astronauts splashed down in the Pacific Ocean as they return early from the International Space Station due to a crew member’s medical issue.

A group of astronauts will return from the International Space Station more than a month ahead of schedule after an unnamed crew member experienced a medical issue.

A newly discovered celestial object may be a starless cloud that could change how astronomers understand dark matter.

(CNN) — Michaela Benthaus, a 33-year-old German aerospace and mechatronics engineer at the European Space Agency, just became the first wheelchair user ever to travel past the Kármán Line — a common ...

A monthslong saga featuring tech billionaire Jared Isaacman — President Donald Trump’s on-again, off-again pick to run NASA — has finally come to a close as the Senate confirmed his appointment in a ...