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 school-bus-sized observatory launched on April 24, 1990 and overcame early setbacks to become one of the most ...