An international team of astronomers has witnessed an "extremely rare" event: a black hole eating a star then ejecting a near light-speed flare.
It will be a long, tough journey for the astronauts who embark on the first manned mission to Mars. A brief, new NASA video addresses how the agency's planning to help them deal with the stresses.
The space agency wants to bring back supersonic jet travel over land. The first step? Finding out how much boom people on the ground can handle.
The warm interior ocean of this moon of Saturn is bursting through its surface and the spacecraft plans to dive-bomb the satellite for a sip.
NASA recently outlined its plan to get astronauts to Mars roughly two decades from now. Here are some of the biggest planned milestones it hopes will make that happen.
Featuring a now-discontinued logo known as "the worm," this manual offers an insider's look at a captivating piece of the space agency's history.
If a mission extension is approved, the New Horizons spacecraft will take a short jaunt to a mysterious icy object in the Kuiper Belt.
A short Thanksgiving video shows how US astronauts are celebrating the holiday aboard the International Space Station.
A 4-mile-high mountain on dwarf planet Ceres comes into focus as the Dawn spacecraft scoots up close for its most detailed images yet.
NASA's New Horizons spacecraft witnessed and photographed Pluto's rotation during a day in the life of the dwarf planet and its largest moon, Charon.