NASA hasn't closed the door on the possibility — and the man in line to be the agency's next chief is a champion of the idea.

This towering structure of billowing gas and dark, obscuring dust might only be a small portion of the Eagle Nebula, but it ...

For Hubble’s 35th anniversary, ESA has unveiled breathtaking new images of the star cluster Messier 72, a celestial gem located in Aquarius. Once the very first image featured in the Hubble Picture of ...

The Hubble Space Telescope is in low Earth orbit, 320 miles (515 kilometers) above the planet, placing it above most of the ...