NASA has successfully switched to backup hardware on the Hubble Space Telescope, including powering on the backup payload computer, on July 15.

The Volatiles Investigating Polar Exploration Rover, or VIPER, is part of NASA’s Artemis program.

When NASA’s DART spacecraft begins its final mission phase, it will see a 4-megapixel view of nothing but a few very dim dots of light.

The probe flew closer to Jupiter's largest moon, Ganymede, than any other spacecraft in more than two decades.

The solar sailing CubeSat is one of several payloads hitching a ride on Artemis I, the first integrated flight of NASA's SLS and the Orion spacecraft.

A puzzler about the gas giant’s intense northern and southern lights has been deciphered.

Ingenuity’s ninth flight provided imagery that will help the Perseverance rover team develop its science plan going forward.

Scientists are studying the effects of small impacts on Europa’s surface as they prepare to explore the distant moon with the Europa Clipper.

Known as ultraluminous X-ray sources, the emitters are easy to spot when viewed straight on, but they might be hidden if they point away from Earth.

The science instrument mapped the dome of high pressure that settled over the northwestern U.S. and western Canada in late June.

Today, Mars is bitterly cold and bone-dry. But billions of years ago, Mars was home to lake systems that could have sustained microbial life.

Flight 9 broke records for flight duration and cruise speed – and it nearly quadrupled the distance flown between two airfields.