NASA will announce new science results from its first-ever asteroid sample return mission in a live teleconference today (March 19) at 1:30 p.m. EDT (1730 GMT). Listen live here!

NASA's recently deceased Kepler space telescope launched on March 6, 2009, ushering in a new era of planetary science.

Cosmic impacts on young Mars may have triggered deluges, potentially explaining why the Red Planet was once covered in water, a new study finds.

The full moon of March, called the Worm Moon, will occur on Wednesday, March 20, at 9:43 p.m. EDT (0143 GMT on March 21), just under four hours after the vernal equinox.

Here's a guide to the major astronomical events of the next year, as well as space launches and milestones for spacecraft already in travel.

The technological utopias of science fiction may still be centuries away, but building the culture of that future starts now.

Like the white-armored and -helmeted Stormtroopers from "Star Wars," these spiders are tough to tell apart.