July 18, 2011
NASA's Dawn spacecraft has entered orbit around Vesta, making it the first mission to orbit a main-belt asteroid.
July 14, 2011
On July 15, NASA's ion-propelled Dawn probe will become the first spacecraft to enter orbit around a main-belt asteroid.
July 11, 2011
NASA has just released new movies of an "inky-dark" solar explosion that continues to puzzle experts more than a month after it happened.
July 6, 2011
As NASA's ion-powered Dawn spacecraft approaches Vesta for orbital insertion in mid-July, Dawn's camera's will be scanning space around the giant asteroid for signs of an asteroid moon.
June 24, 2011
Don't blame La Nina or El Nino for the USA's recent wild weather. According to one NASA climatologist, the real culprit is "La Nada."
June 22, 2011
Policymakers are meeting in Washington DC this week to discuss the growing threat solar storms pose to our increasingly technological civilization.
June 9, 2011
NASA's Voyager probes have reached the edge of the solar system and found something surprising there--a froth of magnetic bubbles separating us from the rest of the galaxy.
June 7, 2011
A new observatory is about to leave Earth to map a powerful compound of global importance: Common everyday sea salt.
June 3, 2011
It's been more than a year since NASA has heard from Mars rover Spirit. The agency says it may be time to say "thanks and farewell."
May 31, 2011
A solar eclipse in the middle of the night? Yes, it can happen. Sky watchers in the Arctic will witness such an event on June 1st when the Moon partially eclipses the midnight sun.