Informed by science from the Smithsonian Astrophysical Observatory and astronomers worldwide, this “documentary that you can walk through” visualizes the cosmos in a 3-D introduction to the universe ...

Researchers confirm the universe's expansion is still accelerating, challenging previous claims of dark energy weakening and halting this growth.

Two stars that once lived together in the Jellyfish Nebula may have also died together.

For more than a century, cosmic rays have remained one of astronomy’s lingering puzzles. These tiny particles move through space carrying extraordinary amounts of energy, arriving from distant corners ...

As America celebrates its 250th birthday, the spirit of exploration that once pushed pioneers across a continent is now ...

A massive star in the Andromeda galaxy brightened in infrared light starting around 2014, then faded from optical view and ...

A supernova remnant is supposed to be a rough neighborhood for a newborn star. Shock waves rip through space at thousands of ...

For the first time, astronomers have discovered stellar cocoons rich in complex organic molecules within a supernova remnant.

A new study of two supernova remnants, the debris left behind after stars explode, suggests the explosions came from stellar siblings that once orbited each other. The first star's detonation sent its ...

If the supernova remnant is confirmed, it would be one of the closest to the supermassive black hole that lies in the center of the Milky Way NASA’s Chandra X-Ray Observatory has captured a dramatic ...

Add Yahoo as a preferred source to see more of our stories on Google. NASA's Chandra X-Ray Observatory has captured a dramatic scene about 26,000 light-years away from Earth. Scientists suspect it ...

Millions of years ago two massive stars circled each other in a cosmic dance. Then one of the stars went supernova. The blast likely flung the exploded star’s companion across space, setting it adrift ...