Price history: This is the cheapest the Celestron Nexstar 6SE has been since March, when it was $919. Since then, it has been ...

[caption id="attachment_234064" align="alignnone" width="1000"] The Celestron NexStar 5SE is our pick for the best telescopes for beginners. [caption id="attachment ...

When you buy through links on our articles, Future and its syndication partners may earn a commission. Recent progress photos of the European Southern Observatory's (ESO) Extremely Large Telescope ...

American space agency NASA readies the Nancy Grace Roman Space Telescope for integration, launch could come as soon as next ...

It is the colours of a sunset that inspire Joseph Anderson, an astronomer at the European Southern Observatory (ESO) in the high Atacama desert, in northern Chile. “They start off very blue and ...

Four-and-a-half months after the James Webb Space Telescope's Christmas Day launch, engineers have achieved near-perfect alignment of its complex optical system, setting the stage for final instrument ...

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After weeks of microscopic adjustments, NASA unveiled the first fully focused image from the James Webb Space Telescope Wednesday, a razor-sharp engineering photo of a nondescript star in a field of ...

A team of astronomers from the U.S. Naval Observatory (USNO), Naval Research Laboratory (NRL) and the European Southern Observatory (ESO) have successfully used the ultra high-resolution capability of ...

Optical aberration theory remains a fundamental component in the design and operation of space telescopes. With increasingly ambitious astronomical missions and the demand for high-resolution imaging, ...