The Mid-InfraRed Instrument (MIRI) on board the James Webb Space Telescope will be used by astronomers to study faint comets circling the Sun, newly born…Read More »
faraway planets, regions of obscured star formation, and galaxies near the edge of the universe. It must work at extremely low temperatures, of just 7 K above absolute zero or -266 °C. Here, MIRI is being placed in the thermal test chamber at RAL Space, Oxfordshire, UK. Less «
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Looking down at the James Webb Space Telescope, the sunshield, which is stretched out underneath the mirrors (yellow) looks like a spider web.
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Striking a Pose
Credit: NASA/MSFC/David Higginbotham
NASA engineer Ernie Wright holds a dramatic pose in front of the first six flight-ready segments of the James Webb Space Telescope's primary mirror at…Read More »
NASA's Marshall Space Flight Center. Engineers began final round-the-clock cryogenic testing on the mirrors before integrating them into the telescope's structure. Less «
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Shielding the Sun
Credit: NASA/Northrop Grumman
The sun shield created for the James Webb Space Telescope will reach the size of a tennis court.
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Credit: SPACE.com/Clara Moskowitz
A life-size model of the James Webb Space Telescope, set to launch in 2018, was on display at New York's Battery Park in June 2010.
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Acing the Test
Credit: NASA/Northrop Grumman/Ball Aerospace
Through a process called "Wavefront Sensing and Control," or WFSC, software aboard the James Webb Space Telescope will compute the best position for each…Read More »
of 18 mirrors and one secondary mirror, and then adjust the positions. Engineers used a 1/6 scale model to test the WFSC software. Less «
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Credit: Denise Chow
A full-scale, tennis court-sized model of the James Webb Space Telescope. The replica was on display in Battery Park in New York City as part of the 2010 World Science Festival.
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This artist's impression shows the selected design for the James Webb Space Telescope. Northrop Grumman and Ball Aerospace are the prime contractors for JWST.
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The Frosty Treatment
Credit: NASA/MSFC/David Higginbotham/Emmett Given
During cryogenic testing, the mirrors will be subjected to temperatures dipping to -415 degrees Fahrenheit, permitting engineers to measure in extreme…Read More »
detail how the shape of each mirror changes as it cools. Less «
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Testing the Webb Telescope
Credit: NASA/Chris Gunn
Several critical items related to NASA's next-generation James Webb Space Telescope currently are being tested in the thermal vacuum test chamber at NASA's…Read More »
Goddard Space Flight Center, Greenbelt, Md. Image released April 30, 2012. Less «