Miriam Kramer

Representatives with XCOR Aerospace — the company responsible for developing the Lynx space plane — announced today (March 16) that John "Jay" Gibson will head up the commercial spaceflight company.

Ganymede, Jupiter's largest moon, has a vast underground ocean of salty water, NASA scientists announced Thursday (March 12). The ocean on Ganymede was discovered with the Hubble Space Telescope.

Three crewmembers are safely back on Earth after a six-month mission on the International Space Station.

Three International Space Station crewmembers — including one NASA astronaut — are on their way back to Earth today (March 11) after a nearly six-month stint aboard the orbiting outpost.

A powerful camera spotted a comet and scientists captured images of a supernova four different times. Here are Space.com's pics for the top space stories of the week.

An observatory will celebrate the planned arrival of a NASA spacecraft at Ceres by streaming live images of the dwarf planet live online Friday (March 6).

Two astronauts in space said goodbye to a science fiction legend on Earth by beaming back striking photos from the International Space Station.

NASA is celebrating the 100-year anniversary of its predecessor, NACA — the National Advisory Committee for Aeronautics — and you can watch the celebration live online today (March 4).

The private spaceflight company SpaceX launched a pair of communications satellites to space yesterday (March 1), and you can see amazing videos and photos of the liftoff.

The death of "Star Trek" actor Leonard Nimoy has prompted an outpouring of condolences and heartfelt reflection from astronauts, scientists, celebrities and even President Barack Obama.

Astronauts, space scientists and fans remember Leonard Nimoy, who played Spock on TV's 'Star Trek.'

A recently launched NASA satellite has just deployed its giant antenna in preparation to collect unprecedented data about soil moisture around the world.

Actor Leonard Nimoy, who portrayed the beloved Vulcan 'Spock' on the original "Star Trek" TV show, died today (Feb. 27) at 83 years old.

Astronomers have just released a brand-new, best-ever 3D view of the deep universe, and it's a doozy.

What would the first woman on the moon do if she saw a bunch of astronauts coming down to steal her glory? She'd attempt to shoot them down with her space guns, of course.

Flying drones, dancing robots and games galore made debuts at the 2015 Toy Fair.

Send a Valentine's Day card to your spacey sweetheart this year courtesy of the European Space Agency.