The Virgo cluster, despite being millions of light-years away, closest large galaxy cluster to Earth. The Virgo galaxy ...

Scientists have theorized that dark matter clumps exist in staggering numbers, far more than the galaxies we see. Only clumps ...

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 ...

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 ...

WASHINGTON (Reuters) - The newest, most high-tech camera aboard the Hubble Space Telescope stopped working last weekend and two of its main capabilities are unlikely to recover, NASA officials ...

A high-tech camera the size of a baby grand piano is now on display at the Smithsonian's National Air and Space Museum, drawing admiring looks from scientists and historians who relish the chance to ...

Twenty-five years ago this week, NASA held its collective breath as seven astronauts on space shuttle Endeavour caught up with the Hubble Space Telescope 353 miles (568 kilometers) above Earth.