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Planets, stars, and star clusters, oh my!

Follow Space.com's rocket launch blog for the latest on when the next rocket launch will be and how to follow it live.

"WIMPs are still the leading candidate for dark matter, but billions of dollars of experiments have been done, only getting stronger and stronger upper limits, so alternative scenarios have to be considered."

The latest aurora forecast for tonight help you make sure you're in the right place at the right time to see the northern lights.

Find out what you can see in the night sky for tonight, from planets and stars to dazzling meteor showers.

NASA has decided to bring the four astronauts of SpaceX's Crew-11 mission home from the International Space Station early due to a medical issue experienced by a crewmember in orbit.

"Nothing in my professional training as an X-ray astronomer had prepared me for something like this."

NASA just postponed a spacewalk because of a medical concern with an astronaut. Here's how the agency has handled such issues in the past.

The Vera Rubin Observatory has found 19 new "superfast rotator" asteroids, including the fastest-spinning big space rock ever found.

Auroras may be visible from Alaska to New York as incoming coronal mass ejections and high-speed solar winds could trigger geomagnetic storms tonight.