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The stars of the globular cluster NGC 6441 sparkle peacefully about 13,000 light-years from the Milky Way’s galactic center.

Critical parts of the booster will soon head to Kennedy Space Center in preparation for the Artemis I launch.

Asteroid 2002 NN4 will safely pass Earth on June 6 at a distance of approximately 3.2 million miles. There is no danger to Earth.

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

You've seen lightning flash from a storm cloud. Those bolts represent only a small part of the overall phenomenon of lightning.

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.