Astronomers measure how fast a black hole spins.
A river valley found on a distant moon resembles Earth’s Nile.
A giant hole in the dust disk around a star could hold multiple planets.
Students partner with NASA to direct cameras orbiting the Moon.
An enormous galaxy cluster is birthing stars at a furious pace.
NASA’s mission control guided Curiosity to a perfect landing in Gale Crater.
Sky-gazers caught a rare glimpse of Venus framed by the Sun.
The first private mission visits the International Space Station.
The Space Shuttle Enterprise took a final flight on the way to its new home in NYC.
NASA’s Dawn spacecraft captures detailed images of a giant asteroid’s alien landscape.