The journey of astronomical telescopes began in the early 17th century when Galileo Galilei crafted his first refracting ...

Astronomers are raising concerns about the impact of light pollution from a renewable energy project on the world’s most ...

Well, any of us who has ever looked through a telescope could say the same, for the two principal types in use today were developed by giants: the refractor ... lens so that light entered that ...

European Southern Observatory Director General Xavier Barcons told Space.com that astronomers expect the project to brighten ...

Astronomers are sounding alarm bells as the world's most precious sky-observing location faces a light pollution risk due to ...

The European Southern Observatory's (ESO) Extremely Large Telescope (ELT) — the world's largest visible- and infrared-light ...

Webb is the most ambitious and complex space science telescope ever constructed, with a massive 6.5-meter primary mirror that will be able to detect the faint light of far-away stars and galaxies.

From magnification to light-gathering ... There are two types of telescopes: a lens-based refractor and a mirror-based reflector. All telescopes are mounted on a tripod. Although it’s often ...

Researchers have finished equipping the Subaru Telescope with a new special "compound eye," culminating several years of ...

It is refraction that makes some objects appear to bend when they are viewed through water, like the straw shown here. If the light hits the ... but not nearby ones) telescopes cameras Eyes ...

He said a refracting telescope is an instrument that uses a combination of lenses to produce images of distant objects in space that would not be visible with the human eye. Scientists will use the ...