This one-of-a-kind huge telescope will capture the sharpest and best images of space any telescope has ever done.

Pointy Perfection Ever notice something about those images captured by the James Webb Space Telescope — other than the fact ...

The world’s largest optical mirror was successfully installed on a support system prototype for the first time to validate ...

This powerful Newtonian reflector telescope has hundreds of 5-star Amazon reviews and is at one of its best-ever prices.

The Simonyi Survey Telescope now has its mirrors and a camera in place. (Credit: Rubin Observatory) The Vera C. Rubin Observatory’s 8.4-meter Simonyi Survey Telescope in Chile has now been ...

Once blocked from view, the most massive young star cluster in the Milky Way has finally been revealed by the James Webb Space Telescope.

World’s largest optical mirror successfully installed on support system prototype for the first time to validate telescope’s extraordinary performance. Installation of one of GMT’s 8.4-m-diameter ...

[Hank Green] posted an interesting video about the first liquid mirror telescope from back in the 1850s. At the time, scientists were not impressed. But, these days, people are revisiting the idea.

The first 18 pieces for one of the European Southern Observatory’s Extremely Large Telescope (ELT) mirrors have started their 10,000 kilometer journey from France to Chile. It’s a key step on ...

Suspended by suction cups, one of the Giant Magellan Telescope's seven primary mirror segments is hoisted onto its support structure by a crane at the Richard F. Caris Mirror Lab. Inside the ...