The primary mirror (M1) of the telescope is a massive 39-metre (128-foot) instrument, making it the largest visible and infrared light telescope ever made. The other mirrors, although not as ...

Construction of the world's largest telescope moves forward with progress of the structure's dome and housing for the primary mirror. The European Southern Observatory's (ESO) Extremely Large ...

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

Scientists have warned that a renewable energy project poses a risk for the world’s largest telescope. AES Energy, a US-based ...

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[Andrew] summarizes things quite well: “yes… One of the world’s largest telescopes, 370 tons of steel and glass, was brought to a halt because of a bad indicator LED”. It stopped things by ...

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 Universe ...

But Webb blocked out much of the star's intrusive light with an instrument called a coronograph. What's more, these four worlds are large ... The four visible planets of the multi-planet system ...

The car-sized Large Synoptic Survey ... The Rubin telescope, under construction in Cerro Pachón, Chile, is expected to see first light in 2025. Join our Space Forums to keep talking space on ...

It's rare for any observatory to directly image a planet beyond our solar system, called an exoplanet, but the powerful James Webb Space Telescope has captured four of them in the stellar system HR ...