Stuntman Felix Baumgartner has died aged 56, and the Mirror looks back at the daredevil's greatest and recordbreaking stunts ...

Imagine a space telescope with a mirror stretching 50 meters across! That's larger than the width of a U.K. soccer field and ...

While the James Webb Space Telescope is almost at its deep space temperature, NASA officials wrote in an update, there's no firm timeline on when it will get cool enough.

Send-off ceremonies held here at Ball Aerospace on Aug. 15 saluted the completion of 18 beryllium primary mirror segments for the James Webb Space Telescope (JWST), which is billed as the ...

So space-mirrors are impractical - to put it lightly. You know what’s more practical? Volcanoes. When volcanoes erupt, they spew out particles called sulfate aerosols, which scatter the sun’s ...