10.05.11 - Astronomers have found a new cosmic source for the same kind of water that appeared on Earth billions of years ago and created the oceans.
09.30.11 - NASA's Dawn spacecraft has completed a gentle spiral into its new science orbit for an even closer view of the giant asteroid Vesta.
09.29.11 - New observations by NASA's Wide-field Infrared Survey Explorer, or WISE, show there are significantly fewer near-Earth asteroids in the mid-size range than previously thought.
09.19.11 - The family of asteroids some believed was responsible for the demise of the dinosaurs is not likely the culprit according to new observations.
09.16.11 - A new video from NASA's Dawn spacecraft takes us on a flyover journey above the surface of the giant asteroid Vesta.
09.15.11 - A meteor is the most probable cause of a bright, colorful fireball witnessed by people in a wide swath of the southwestern United States.
08.16.11 - Often, comets are portrayed as harbingers of gloom and doom in movies and on television, but most pose no threat to Earth.
08.11.11 - NASA's Dawn spacecraft is now in its first science-collecting orbit at Vesta.
08.08.11 - NASA-funded research has discovered that some of the basic building blocks of life may have been brought to a young Earth by meteorites.
08.01.11 - NASA's Dawn spacecraft, the first ever to orbit an object in the main asteroid belt, is spiraling towards its first of four intensive science orbits.
07.28.11 - NASA's Dawn mission, in orbit around Vesta, captures a new image from a distance of 3,200 miles (5,200) kilometers from the giant asteroid.
07.21.11 - NASA's Dawn mission, in orbit around Vesta, captured the latest image from a distance of about 6,500 miles (10,500 kilometers) kilometers from the giant asteroid.
07.14.11 - On July 15, NASA's Dawn spacecraft will begin a prolonged encounter with the asteroid Vesta, making the mission the first to enter orbit around a main-belt asteroid.
08.03.11 - Often, comets are portrayed as harbingers of gloom and doom in movies and on television, but most pose no threat to Earth. Comet Elenin, the latest comet to visit our inner solar system, is no exception.
04.29.11 - NASA spacecraft have already flown past comets and asteroids, and now Earth itself will "fly by" an object that will provide NASA scientists a unique observing opportunity.
04.28.11 - On Dec. 11, 2010,asteroid Scheila flared twice as bright as expected. Hubble and Swift captured the aftermath of this deep space collision.