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James Webb Space Telescope completes tricky sunshield deployment The James Webb Space Telescope has successfully deployed all five layers of its tennis-court-sized sunshield, a prerequisite for the telescope's science operations and the most nerve-wracking part of its risky deployment.
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With James Webb Space Telescope's huge sunshield in place, focus shifts to big mirrors Webb's 21.3-foot-wide (6.5 meters) primary mirror consists of 18 hexagonal segments arrayed across a central platform and two smaller side "wings." These wings were folded back prior to launch so the assembly could fit inside the protective payload fairing ...
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'We nailed it!' Webb clears major hurdle with full sunshade deployment The final layers of the James Webb Space Telescope's sunshade were robotically pulled taut with a system of motors, cables, and pulleys Tuesday, clearing a major milestone before unfolding mirrors to collect light from the oldest galaxies in the universe.
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Happy perihelion! Earth reaches its closest point to the sun of 2022 The sun is just a little bit closer in Earth's sky right now. Earth is at its closest to the sun Tuesday (Jan. 4) in its 365.25-day journey. This milestone, called perihelion, coincidentally happens near the start of the Gregorian calendar year ...
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Webb telescope successfully unfurls its tennis court-size sunshield in space It's one of the most challenging spacecraft deployments NASA has ever attempted, according to the agency. Unfurling a tennis court in space.
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Facing criticism, CDC updates Covid-19 isolation recommendations with guidance on testing The agency has faced pressure over the past week from outside medical experts to include a testing component in its new shortened isolation period. The updated recommendations do not advise a test for isolated people, but they offer guidance on how those ...
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Exploding meteor 'booms' over Pennsylvania on New Year's Day A meteor hurtling through Earth's atmosphere exploded over Pittsburgh, Pennsylvania on New Year's Day (Jan. 1). Just before 11:30 a.m. EST (1630 GMT) on Jan. 1, people in Pittsburgh heard what sounded like a loud "boom" outside.
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NASA presses ahead with Webb space telescope sunshield deployment Bill Ochs, the NASA project manager, said tightening up the sunshade's five hair-thin layers, carefully pulling them taut with motor-driven cables running through multiple pulleys, likely would take three days to complete.
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NASA successfully deploys complex sunshield on James Webb Space Telescope Often considered the successor to the Hubble Space Telescope currently in orbit around Earth, JWST promises to provide even more power and an enhanced capability to see distant, faint objects in our Universe. Astronomers hope to use ...
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Resolving the black hole 'fuzzball or wormhole' debate Black holes really are giant fuzzballs, a new study says. The study attempts to put to rest the debate over Stephen Hawking's famous information paradox, the problem created by Hawking's conclusion that any data that enters a black hole can never leave ...
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