The ELT is leaping toward the stars, quite literally — its massive dome, once skeletal, is now clad in protective armor, ...

In the years since, Hubble has gathered more than 1.6 million observations and 430 terabytes of data. The telescope has ...

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.

Hubble’s three-and-a-half-decade lifetime has allowed astronomers to observe cosmic objects over extended periods to see how ...

Remember when NASA was laser focused on that? It was 35 years ago when the Hubble Space Telescope deployed into orbit, sent ...

The massive dome measures 305 feet (93 meters) in diameter, or about the size of a football field and stands 263 feet (80 ...

John Grunsfeld has a model of the Hubble Space Telescope on his bookshelf. It's right next to a model of a NASA space shuttle ...

The Inouye Solar Telescope just activated its most powerful instrument, VTF—a massive precision tool designed to unveil the ...

The anniversary celebration also included a countdown of images captured over the Hubble Space Telescope's lifetime so far, ...

The world's most famous telescope is celebrating in style with new views of Mars, nebulas and a galaxy that reminds us of ...

UCSB Physics Professor Roger Freedman held our attention three years ago as he explained the wonders and understanding that ...