Despite myriad embellishments, however, most optical telescopes in use in the 21st century derive from the two types developed in the 17th century by Galileo and Newton, on whose shoulders all ...

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

The Hubble Space Telescope captured an image of a star and a spiral galaxy, both in the constellation Virgo. But the photo is ...

In the 20th century, telescopes advanced greatly in size, with apertures of optical scopes expanding from just five feet to over 30, and radio dishes growing from 30 feet across to 1,000.

This type of adaptive optics system has been ... There are many challenges in building the next generation of giant optical/infrared telescopes and associated adaptive optics systems and instruments.

Optical telescopes an individual person might use ... such as the straight-outta-sci-fi Wolter telescope. This type of telescope uses ring-shaped 'glancing' mirrors made of heavy metals, which ...

Telescopes are devices used to observe the universe. There are many different types and some are even sited in space. Optical telescopes close optical telescopeA device used to see distant objects ...

[Bill Hammack] elaborates on one such piece of engineering: The Alignment Optical Telescope. The telescope was used to find the position of the Lunar Module in space so that its guidance computer ...