Spacewalking astronauts successfully replaced the Hubble Space Telescope's main camera, which has taken many of the telescope's most famous images, after wrestling with a stubborn bolt that refused to ...

Jubilant astronomers today unveiled humankind’s most spectacular views of the universe, as captured by the NASA Hubble Space Telescope’s new Advanced Camera for Surveys (ACS). They also reported that ...

First motion is almost always a big event in the world of space exploration. Whether the first motion is of a wheel beginning to rotate or a rocket lifting off the pad, first motion means things are ...

Imagine a window opening onto the universe, a window affording views unparalleled in history and offering glimpses of thousands of spinning galaxies and luminous, exploding stars. For a brief time, UW ...