Winter images of NASA's Phoenix Lander showing the lander shrouded in dry-ice frost on Mars have been captured with the High Resolution Imaging Science Experiment, or HiRISE camera, aboard NASA's Mars Reconnaissance Orbiter.

Is there such a thing as "weather" on Mars? There are some doubts, considering the planet's atmosphere is only 1 percent as dense as that of the Earth. Mars, however, definitely has clouds, drastically low temperatures and out-of-this-world dust storms,

Until Oct. 24, NASA's Mars Exploration Rover had gone more than six months without an episode of amnesia-like symptoms like those that appeared on four occasions earlier this year.

News conferences, events and operating hours for the news center at NASA's Kennedy Space Center, Fla., are set for the upcoming launch of space shuttle Atlantis.

NASA Administrator Charles Bolden and Secretary of Education Arne Duncan are hosting Washington area middle and high school students Thursday for a live discussion with astronauts aboard the International Space Station.

A NASA spacecraft's third and final flyby of the planet Mercury gives scientists new scientific findings about this relatively unknown planet.

NASA will award $1.65 million in prize money Thursday to a pair of innovative aerospace companies that successfully simulated landing a spacecraft on the moon and lifting off again.

NASA Administrator Charles Bolden held his first meeting with the restructured NASA Advisory Council this week at the agency's Ames Research Center at Moffett Field, Calif.

Scientists released Tuesday images and other data collected by NASA's MESSENGER spacecraft as it...

NASA confirmed late Monday that it will award $1.65 million in prizes to two...

A Russian Rockot vehicle placed two European satellites into orbit early Monday. The Rockot booster...