Lightning creates brief bursts of gamma rays. Researchers measured these bursts using instruments on the ISS.

NASA has assigned astronaut Kate Rubins to a six-month mission to the International Space Station as a flight engineer.

New results from Hubble suggest the formation of the first stars and galaxies in the early universe took place sooner than previously thought.

This view is a mosaic of sample site Osprey on asteroid Bennu created from images collected by NASA’s OSIRIS-REx spacecraft.

Less than a week into their stay, astronauts Doug Hurley and Bob Behnken are stepping up their advanced science activities.

NASA's Mars 2020 Perseverance rover will collect the first samples from another planet.

The three NASA astronauts aboard the International Space Station rang the NASDAQ opening bell Tuesday morning.

A new visualization allows you to experience 500 years of cosmic evolution around the supermassive black hole at the center of the Milky Way.

About 3.5 million years ago, the supermassive black hole at the center of our Milky Way galaxy unleashed an enormous burst of energy.

Seven of the regions that dominate global ice mass losses are melting at an accelerated rate, a new study shows.

A pair of astronomers time traveled through archives of old data to unlock a mystery surrounding a bright, lensed, heavily obscured quasar.

The International Space Station has two new NASA astronauts after the SpaceX Crew Dragon arrived on Sunday.