Oct. 2's annular solar eclipse saw a small-looking new moon cross the face of the sun to create a perfect circle for about ...

"The commonly quoted average distance of 384,400 kilometers, or 238,855 miles, is a good approximation," said Craig Hardgrove ...

NASA has turned off one of Voyager 2's science instruments as power conservation becomes crucial for the interstellar ...

New research can help us understand how supermassive black holes formed — and why many of them appear to be more massive than ...

Physicists showed that photons can seem to exit a material before entering it, revealing observational evidence of negative ...

This "living fossil" can grow as large as an alligator, has two rows of needle-sharp teeth, and such strong armor that it ...

Using the James Webb Space Telescope, astronomers have discovered carbon dioxide and hydrogen peroxide at the surface of ...