Space.com

NASA astronauts Suni Williams and Butch Wilmore have been training on Boeing's Starliner spacecraft for years. The team says they're ready for the first astronaut launch no earlier than May 1.

On March 28, Earth was hit by an X-class solar flare that was strong enough to ionize part of the planet's atmosphere.

Cumulus clouds rapidly dissipate as the land surface cools. This isn't just good news for eclipse chasers on April 8, but also has implications for sun-obscuring geoengineering efforts.

Varda Space has written up the results of its groundbreaking W-1 mission, which successfully crystalized the metastable Form III of the antiviral drug ritonavir in space and returned it to Earth.

Earlier this month, a sudden atmospheric warming event caused the Arctic's polar vortex to reverse its trajectory. The swirling ring of cold air is now spinning in the wrong direction, which has triggered a record-breaking "ozone spike" and could impact global weather patterns.

The Solar and Heliospheric Observatory just hit a milestone with its 5,000th comet detection.

This impressive Lego Star Wars ship packs in plenty of detail without breaking the bank.

A small galaxy is bursting with star formation in a dazzling new image from the James Webb Space Telescope.

A quasar over three billion light-years away was found to be rather gentle on its host galaxy, allowing its black hole to keep growing.

We explore how eclipses repeat and what it takes to earn a 'black belt' in eclipse chasing, according to our skywatching columnist Joe Rao.

For Women's History Month, NASA's Teresa Kinney shared what she's learned in 40 years of working in agency circles, and how she's trying to help the next generation fly to space.

The European Space Agency's Rosalind Franklin Mars rover now has a detailed map with which to help find its way around the Red Planet when it lands sometime in the next decade.

Scientists shared preliminary results from Lucy's encounter with Dinkinesh and Selam late last year.