Scientists are urging limits on satellite launches after simulations showed some observatories could become effectively ...

If the number of satellites in Earth's orbit exceeds 100,000, humanity may lose its ability to study the universe from the ...

NASA’s Swift space telescope is reaching the end of its two-decade run in orbit – unless a satellite launched on 3 July can ...

NASA on Friday launched a rocket into space to save one of its most iconic telescopes from falling to Earth. In a ...

WASHINGTON, United States — NASA launched a robotic mission on Friday to try to prevent one of its aging telescopes from burning up in the atmosphere, a complicated operation expected to last several ...

Jupiter has fascinated scientists for centuries, but every new mission reveals a world far stranger than anyone imagined.

After some onboarding that included setting such preferences as closed captioning and signing a waiver, I had enough time to ...

The United Kingdom Infrared Telescope is one of thirteen working telescopes on the mountain’s summit and the third to be decommissioned.

Here’s how to see the year’s most-intense meteor shower, a blood-red lunar eclipse and Saturn’s refreshed rings this summer.

A comet screaming in from another star system carried alien ice ratios never seen before. What scientists found inside its spinning nucleus is reshaping how we picture worlds beyond our sun.

Astronomy is under threat like never before. A significant new study, which was conducted by astronomers from the European Southern Observatory (ESO), has warne ...