Hanneke Weitering

Blue Origin has delayed the planned launch of its New Shepard rocket from West Texas today (Sept. 24), citing a power glitch.

Planets aren't the only things in the solar system with auroras. Comets can have them too, data from the European Space Agency's Rosetta mission has revealed.

An asteroid the size of a jumbo jet will have a close encounter with Earth today (Sept. 1), zooming past our planet at about one-third the average distance to the moon.

Boeing is now planning to launch the second uncrewed test flight of its CST-100 Starliner spacecraft no earlier than December, the company announced Friday (Aug. 28).

To prepare for the potentially catastrophic storm, NASA has temporarily closed Johnson Space Center, sending space station flight controllers to backup hubs in Texas and Alabama.

Arecibo is investigating the cause of a mysterious accident that damaged its iconic radio telescope.

The Perseid meteor shower, one of the most famous annual "shooting star" displays, reached its peak activity this week, putting on a spectacular show for skywatchers in the Northern Hemisphere.

The annual Perseid meteor shower has just peaked, but it's not too late to spot one of the famed "shooting stars" in the night sky — or in a live webcast.

The first astronauts to fly in SpaceX's Crew Dragon spacecraft are on their way back to Earth from the International Space Station.

NASA's Mars helicopter, called Ingenuity, is hitching a ride to the Red Planet with the agency's Mars 2020 Perseverance rover.

Kathy Lueders, the first woman to lead NASA's human spaceflight program, will helm the agency's return to the moon.

NASA has completed its investigation into Boeing's problematic first test flight of a Starliner crew capsule as the company and agency look toward a second test flight sometime this year.

Two NASA astronauts will venture outside the International Space Station for a spacewalk today (July 1), and you can watch it live online.

Virgin Galactic successfully completed a second test flight of its SpaceShipTwo space plane from the company's New Mexico spaceport on Thursday (June 25).

She expects 'really big things' from future women in space.

The last-quarter moon will make a close approach to the Red Planet in the predawn sky on Saturday (June 13), providing a celestial treat for early birds and night owls.

It was "huffing and puffing" on the way to orbit, astronauts say.

SpaceX founder Elon Musk was choked up with emotion after his company successfully launched astronauts to space for the first time on Saturday (May 30).

Mark your calendars!

If it weren't for the weather, SpaceX would have made history Wednesday (May 27). Now the company will have to wait another three days to try again — if Mother Nature cooperates.

On the eve of his historic launch on a SpaceX Crew Dragon spacecraft, NASA astronaut Bob Behnken got ready for the big day by launching a rocket of his own.

The stakes have never been higher for SpaceX, which is poised to become the first commercial spaceflight company to launch NASA astronauts to space on Wednesday (May 27).

SpaceX is officially "go" to launch two NASA astronauts to the International Space Station this week after the final launch readiness review. But some bad weather could potentially cause delays.

Space.com spoke with NASA's former human spaceflight chief Doug Loverro, who abruptly resigned on the eve of a historic launch with little explanation.