The casting of the secondary mirror blank for ESO's Extremely Large Telescope (ELT) has been completed by SCHOTT at Mainz, Germany. The completed mirror will be 4.2 metres in diameter and weigh 3.5 tonnes. It will be the ...
Space Exploration
May 22, 2017
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Seen here is a Cheops team member reflected in the satellite's main mirror, and framed by the black internal surface of the telescope tube. The back of the secondary mirror is seen at the centre of the image, held in place ...
Astronomy
May 8, 2017
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NASA's James Webb Space Telescope has successfully passed the center of curvature test, an important optical measurement of Webb's fully assembled primary mirror prior to cryogenic testing, and the last test held at NASA's ...
Space Exploration
May 2, 2017
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It's springtime and the deployed primary mirror of NASA's James Webb Space Telescope looks like a spring flower in full bloom.
Space Exploration
Apr 25, 2017
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At a ceremony today at ESO's Headquarters four contracts were signed for major components of the Extremely Large Telescope (ELT) that ESO is building. These were for: the casting of the telescope's giant secondary and tertiary ...
Space Exploration
Jan 18, 2017
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The James Webb Space Telescope (JWST) is now deemed "sound" and apparently unscathed, engineers have concluded, based on results from a new batch of intensive inspections of the observatory's structure, after concerns were ...
Space Exploration
Dec 28, 2016
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NASA engineers recently unveiled the giant golden mirror of NASA's James Webb Space Telescope as part of the integration and testing of the infrared telescope.
Space Exploration
Apr 27, 2016
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Assembly of the next great space observatory, the James Webb Space Telescope (JWST), is now underway at NASA's Goddard Space Flight Center. Launch target: 2018.
Space Exploration
Apr 11, 2016
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The ultra-sensitive, highly precise Near Infrared Camera (NIRCam) instrument for the James Webb Space Telescope (Webb telescope) beat its most stringent requirements during Integrated Science Instrument Module (ISIM) testing, ...
Space Exploration
Apr 11, 2016
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This computer-simulated image shows a supermassive black hole at the core of a galaxy. The black region in the center represents the black hole's event horizon, where no light can escape the massive object's gravitational ...
Astronomy
Apr 7, 2016
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