Apollo 15: Driving on the Moon

Forty years ago, NASA astronauts Dave Scott, Jim Irwin and Al Worden traveled to the moon on Apollo 15. And when Scott and Irwin made it to the surface, they didn't just walk on the moon, they drove on it.

Landing site chosen for Mars Science Laboratory. Credit: NASA

NASA's Next Mars Rover to Land at Gale Crater

The car-sized Mars Science Laboratory, or Curiosity, is scheduled to launch late this year and land in August 2012. The target, Gale crater, is about the combined area of Connecticut and Rhode Island and holds a Mt. Rainier sized peak.

Drop test at hydro impact basin at NASA Langley

Testing NASA's Next Deep Space Vehicle

Testing began this month at NASA's Langley Research Center in Hampton, Va., in the new Hydro Impact Basin to certify the Orion Multi-Purpose Crew Vehicle for water landings.

This artist's concept illustrates a quasar, or feeding black hole, similar to APM 08279+5255, where astronomers discovered huge amounts of water vapor.

Astronomers Find Largest, Most Distant Reservoir of Water

Astronomers have discovered the largest and farthest reservoir of water ever detected in the universe. The water, equivalent to 140 trillion times all the water on Earth, surrounds a huge, feeding black hole more than 12 billion light-years away.

NASA's Dawn Spacecraft Beams Back New Photo of Asteroid Vesta

Dawn entered orbit around Vesta on July 15, 2011, and will spend a year orbiting the body. After that, the next stop on its itinerary will be an encounter with the dwarf planet Ceres.