Light is the fastest phenomenon in the universe, clocking in at just under 300,000 kilometers per second. The telescopes that observe that light, from radio waves to gamma rays, are built at rather ...

The Steward Observatory Mirror Lab recently completed polishing a $23 million, 8.4-meter (27.5 feet) diameter mirror for the Giant Magellan Telescope (GMT). It is the first of eight giant mirrors that ...

Republican lawmakers in Indiana are considering a bill to make it illegal to use public land for sleeping and camping. This ...

Add Yahoo as a preferred source to see more of our stories on Google. The James Webb Space Telescope has delivered new evidence that sheds light on what scientists know about black holes. Launched ...

NASA completes assembly of the Nancy Grace Roman Space Telescope. The observatory will enter final testing before launch, providing infrared surveys and cosmic data for astronomy research.

The James Webb Space Telescope has delivered new evidence that sheds light on what scientists know about black holes. Launched more than four years ago, the infrared observatory, and successor to the ...

Drawing upon its uniquely stable production facility - Optical Surfaces Ltd. has established itself as a leading supplier of larger diameter hyperbolic mirrors and the extremely tight tolerances and ...

If you enjoyed this article, I’d like to ask for your support. Scientific American has served as an advocate for science and industry for 180 years, and right now may be the most critical moment in ...

A planned industrial plant was threatening the world-renowned dark skies over ESO’s Paranal Observatory, the premier site for cutting-edge astronomical research. As the American company AES Andes has ...

Coatings produced via atomic layer deposition (ALD) or ion-beam sputtering (IBS) offer dense film structure, superior ...

Recent observations from NASA's James Webb Space Telescope, illustrated alongside a new image from NASA's Hubble Space Telescope, challenge previous assumptions by indicating that a significant ...