The so-called "Extremely Large Telescope" is being built on a mountaintop in the Andes at an elevation of about 3,000 meters. And it really is extremely large. The primary mirror will be 39 meters ...

Jupiter's stunning auroras are hundreds of times brighter than those seen on Earth, as pictured in new images taken by the James Webb Space Telescope. Latest U.S.

Grinding, polishing, and figuring a telescope mirror is enormously rewarding. I did my first 8″ just over 50 years ago, and the idea that I could make an item accurate to millionths of an inch ...

To celebrate the Hubble telescope's 35th anniversary, NASA released some striking new images on Wednesday, including a bold rendition of Mars and a stunning photo of a moth-shaped nebula with a ...

When I was a kid, I was fascinated by the Powers of 10 video, which came out in the 1970s.Perhaps you remember it, with the narrator taking us both outward toward the fathomless end of the ...

The latest image from NASA's James Webb Space Telescope, pictured above, also happens to be a stunning illustration of Einstein's theory of general relativity.So much so that the cosmic phenomenon ...

Institute of Optoelectronics, Military University of Technology, Warsaw, Poland; Introduction: Apart from discussing general issues related to the application of freeform telescopes, this work ...

Extraordinary images from the Euclid space telescope have captured 26 million galaxies, some as far off as 10.5 billion light years. Euclid was launched by the European Space Agency ...

James Webb telescope captures stunning image in space: Meet Leo P, a special dwarf galaxy An image captured in January and that NASA shared earlier in February not only shows Leo P, but its ...

In other words, the Subaru telescope is multi-talented, and balances its deep space duties with those much closer to home. Subaru’s new compound eye will build on the telescope’s legacy and ...

NASA's James Webb Space Telescope (JWST) has captured photos of one of the earliest supernovas ever seen, with features appearing like grains and knots found in a cut of wood. "Once upon a time ...

A rare look at NASA’s next sharp-eyed space telescope. In a giant “clean room” in Maryland, engineers are assembling the Roman telescope, aiming for launch no later than 2027.