More than 400 years after Danish astronomer Tycho Brahe challenged established wisdom about the heavens by analyzing a strange new light in the sky, scientists say they've finally nailed down just what he saw. It's no big surprise. Scientists have known the light came from a supernova, a huge star explosion. But what kind of supernova? A new study confirms that, as expected, it was the common kind that involves the thermonuclear explosion of a white dwarf star with a nearby companion. The research, which analyzed a "light echo" from the long-ago event, is presented in Thursday's issue of the journal… » More
Space shuttle makes a successful touch down in California after bad weather scrubs Florida landing » More
On the menu - smoked turkey, rehydrated green beans and cornbread. » More
Cold front could thwart Friday's shuttle launch.. » More
The nearest polling place is 200 miles away, but those on board the International Space Station aren't forgetting to cast a ballot this election.… » More
The Hubble Space Telescope broke down and stopped sending data. Now astronauts will need time to train for a telescope repair they hadn't planned… » More
It can often seem like hard work keeping track of the changes happening to our planet. Another day, another new prediction. Another week, another… » More
NASA said Monday that it is delaying its mission to the Hubble Space Telescope until next year because of a serious breakdown of the observatory… » More
Sun's wind and output on extended dimmer switch » More
As an organization they're used to investing billions of dollars in scientific experiments that further our knowledge of earth and space. » More
