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China has launched a cargo mission to its new space station, just days after astronauts departed the orbiting outpost.

On Sept. 20, 1970, the Soviet Union's Luna 16 moon probe landed on the moon to retrieve a soil sample. See how it happened in our "On This Day In Space" series!

Physicists turned on a new type of gravitational-wave sensor and saw two intriguing results, but they aren't yet ready to claim a discovery.

There comes a time in every galaxy's life, astronomers think, when the galaxy ejects a large part of its gas, but scientists aren't certain what drives this "mid-life crisis."

The full moon of September 2021 also carries the title of the Harvest Moon for those living in the Northern Hemisphere.

SpaceX founder and CEO Elon Musk has pledged to donate $50 million to benefit childhood cancer research by the St. Jude Children's Research Hospital.

Physicists have created the first-ever atomic vortex beam — a swirling tornado of atoms and molecules with mysterious properties that have yet to be understood.

Inspiration4 may be over, but many other missions are poised to follow in its pioneering footsteps.

The first all-civilian mission to orbit Earth on a SpaceX Crew Dragon spacecraft is scheduled to launch on Sept. 15, and you can follow all the action live here.

After three days in space, SpaceX's first all-civilian crew returned to Earth tonight, splashing down off the Florida coast to end a historic mission.

See the best photos on Space.com this week.

These are the top space stories this week from Space.com.

The lightsaber will be their most realistic yet.

The crystals neatly sidestep some of physics' most iron-clad laws.

SpaceX's first all-civilian crew will return to Earth tonight with a splashdown off the Florida coast to end a mission like no other.

The four astronauts flying on SpaceX's Inspiration4 mission will return to Earth on their Crew Dragon spacecraft today (Sept. 18), and you can watch it live online.

From ultrasounds to ukulele jam sessions and space art, it appears the Inspiration4 crew is staying busy in orbit.

In between playfully snacking on M&Ms, the all-civilian Inspiration4 crew took a break from their science-heavy mission to chat with kid patients from a Memphis children's hospital.

Cancer survivor and civilian astronaut Hayley Arceneaux can be seen floating inside Dragon Crew's dome window

Indie-pop artist Foxanne's new space-bound single, "I Could Go On," highlights a science center that continues to provide science education to the community amid the COVID-19 pandemic.