The Hubble Space Telescope uses a 2.4-meter primary mirror with a total mass of 1,825 pounds (828 kilograms), and the James Webb Space Telescope incorporates 18 segments in its primary 21-foot (6. ...

Unveiled at the CP+ 2025 show in Japan, the new app exploits the Dual Pixel sensor in the Canon EOS R5 to record two images in a single file – combining a regular image and one with parallax ...

Though still only in the prototype stage, this flat lens could one day be used on space telescopes, and perhaps even on amateur telescopes.