After nearly 16 years of exploring the cosmos in infrared light, NASA's Spitzer Space Telescope will be switched off permanently on Jan. 30, 2020. By then, the spacecraft will have operated for more than 11 years beyond its ...
Astronomy
Jun 13, 2019
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143
Twenty-five years ago this week, NASA held its collective breath as seven astronauts on space shuttle Endeavour caught up with the Hubble Space Telescope 353 miles (568 kilometers) above Earth. Their mission: to fix a devastating ...
Astronomy
Dec 5, 2018
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334
What does NASA's future look like? Will the next-generation telescope investigate the first black holes in the distant universe or will it look for life on an Earth-like planet light-years away? As in past decades, the agency ...
Space Exploration
Apr 24, 2018
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25
With NASA's James Webb Space Telescope's approximately nine-month stay in Texas coming to an end, now is a good time to reflect on the memories it made in the Lone Star State. NASA has created a timelapse video that chronicles ...
Space Exploration
Jan 10, 2018
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25
What appears to be a unique selfie opportunity was actually a critical photo for the cryogenic testing of NASA's James Webb Space Telescope in Chamber A at NASA's Johnson Space Center in Houston. The photo was used to verify ...
Space Exploration
Oct 19, 2017
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460
Engineers at NASA's Johnson Space Center in Houston used light waves to align the James Webb Space Telescope's mirror segments to each other, so they act like a single, monolithic mirror in the cryogenic cold of the center's ...
Space Exploration
Sep 20, 2017
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12
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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34
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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5
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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9
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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