Stories by SPACE.com

NASA has launched its next Mars rover, known as Curiosity

This will be the fourth time that a new moon will orbit between the sun and Earth to cause a solar eclipse in 2011, just one eclipse shy of the annual max

The work raises questions about whether super Earth-size objects existed in the early history of the outer solar system

The best way to view the Leonids is to face the darkest part of the sky, away from the moon and the constellation Leo

NASA astronaut Dan Burbank and Russian cosmonauts Anton Shkaplerov and Anatoly Ivanishin blasted into orbit on board a Russian Soyuz TMA-22 spacecraft

Astronomy columnist explains why it's hot in July, why we can see satellites with the naked eye and why the North Star isn't the brightest, among other topics

Phobos-Grunt appears to be stuck in Earth orbit. In two weeks, if its thrusters aren't restarted, the spacecraft will be lost completely

Lift-off from Kazakhstan's Baikonur Cosmodrome is set for 3:16 P.M. EST. The main goal is to grab some dirt from Phobos' surface and return the samples to Earth in 2014

Researchers will use the data collected throughout the Mars500 mission to better understand the physical and psychological challenges that astronauts will face on long-duration missions

NASA Earth-observing satellites have had some bad launch luck. The new probe will collect data for short-term weather forecasting and long-term climate monitoring

It's the first probe ever built to track fast weather systems and long-term climate change

Chang'e 2's mission may be a signal of China's expanding prowess in space and a showcase for the nation's strategic intentions

The Spaceport America Terminal Hangar Facility will be used by Richard Branson's Virgin Galactic

The exact timing and location of ROSAT's atmospheric reentry are uncertain

The International Space Station likely won't have to be vacated next month

A new study finds that previous estimates for this gaseous planet's swirling rotation were inaccurate

A reusable rocket and spaceship could open the gates of Mars for humanity, company CEO Elon Musk announced

The defunct Upper Atmospheric Research Satellite (UARS) reentered the atmosphere at 12:01 A.M. Eastern time (0401 GMT) on Saturday, falling into the Pacific at 14.1 degrees south latitude and 189.8 degrees east longitude

More than 50 new alien planets—including one so-called super-Earth that could potentially support life—have been discovered by an exoplanet-hunting telescope

For instance, for two decades, the general public was able to obtain car passes to visit KSC and watch a shuttle launch, but this was never resumed after the attacks

There will not be enough trained astronauts to meet the demands of future space station missions, according to a new report

New photos from NASA's Lunar Reconnaissance Orbiter show the Apollo moon landing sites in high-resolution, revealing details that could solve historical mysteries about the first manned moon landings

The movie Apollo 18 claims to reveal decades-old footage of astronauts on a secret mission two years after Apollo 17--the last real expedition to the moon. In actuality, NASA did prepare for Apollos 18, 19 and 20

If Russian engineers don't figure out what caused a recent rocket failure soon, the ISS may have to start operating without a crew