"Before Hubble, no generation ever had access to unimaginably vibrant views of space, stretching almost all the way back to ...

In celebration of the 35th anniversary of the legendary space telescope’s launch, here are 35 of our favorite images it has ...

Skywatchers worldwide are in for a charming cosmic display before the Sun rises Friday, as three celestial bodies will appear in close conjunction.

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