The rooms where spacecraft are assembled seem spotless to the human eye, but they may actually harbor several species of hardy bacteria, a new study says.
Felix pounds Central America as Henriette hits western Mexico, marking the first time Atlantic and Pacific storms have struck on the same day since the 1940s.
Get highlights from the past three decades of the ongoing Voyager mission, and find out what experts hope to learn from the craft about our solar system's final frontier.
Colliding asteroids may have peppered the inner solar system with thousands of boulders, including the giant rock believed to have wiped out the dinosaurs, a new study suggests.
Evidence that ancient organisms in permafrost stay just barely alive suggests that similar life might exist in the frozen soils of distant worlds, a new study says.
A patch of sky lacking much of the universe's usual background radiation could be a gaping hole that's devoid of all matter, according to a controversial new theory.
