{"id":2984,"date":"2019-04-17T02:18:18","date_gmt":"2019-04-16T23:18:18","guid":{"rendered":"http:\/\/energyholding.world\/?p=2984"},"modified":"2019-04-18T15:42:49","modified_gmt":"2019-04-18T12:42:49","slug":"nasas-webb-telescope-mirrors-utilize-innovative-space-shielding","status":"publish","type":"post","link":"http:\/\/energyholding.world\/?p=2984","title":{"rendered":"NASA\u2019s Webb Telescope Mirrors Utilize Innovative Space Shielding"},"content":{"rendered":"\n
\"\"

To fit inside the Ariane 5 rocket Webb will ride to space, some of its mirrors are designed to fold, and deploy to full size once in orbit. Shown here: Northrop Grumman technician Ricardo Pantoja performs a routine inspection of NASA Webb\u2019s innovative blanketing along the connection point of its deployable primary mirror segments.
Credits: NASA\/Chris Gunn <\/figcaption><\/figure>\n\n\n\n

\nTo observe objects in the distant cosmos, and to do science that\u2019s never\n been done before, NASA\u2019s James Webb Space Telescopes\u2019 scientific \ninstruments need to be cooled down to a temperature so cold, it would \nfreeze the oxygen in Earth\u2019s atmosphere solid.\n\n<\/p>\n\n\n\n

Intentionally chilling the telescope mirrors and instruments with innovative technologies and intelligent spacecraft design allows them to be far more sensitive to faint infrared light. Infrared can be described simply as heat, and if Webb\u2019s components are cool, they are far more capable at observing faint heat signatures from the distant universe.<\/p>\n\n\n\n

Webb was designed with a revolutionary 5-layer tennis-court-size \nsunshield that blocks the primary sources of heat in order to achieve an\n incredibly frigid temperature of nearly minus 400 degrees Fahrenheit \n(minus 240 degrees Celsius). In addition to the sunshield, there are a \nmultitude of other innovative features which enable the telescope to \nachieve its unmatched sensitivity for faint infrared signals. One such \nfeature is the protective barrier behind Webb\u2019s primary mirror called \n\u201cFrill.\u201d This lightweight blanketing plays an important role on the \nobservatory as it blocks unwanted light from reaching the telescope\u2019s \nsensitive infrared sensors. <\/p>\n\n\n\n

\u201cDue to its origami unfolding architecture, the Webb telescope does \nnot have a cylindrical light baffle, like is seen with Hubble or even \nyour home telescope which is used to block unwanted light. Instead, Webb\n is a first of a kind \u201copen\u201d telescope that relies on the sunshield to \nblock unwanted Sun, Earth and moonlight and relies on the Frill, shown \nhere, to block light from stars and galaxies that are behind the \ntelescope, that would hit the secondary mirror and get down into the \nscience instruments that are extremely sensitive,\u201d said Lee Feinberg, \nOptical Telescope Element Manager, James Webb Space Telescope at NASA\u2019s \nGoddard Space Flight Center in Greenbelt, Maryland.<\/p>\n\n\n\n

\"\"

Northrop Grumman blanket technician Ann Meyer, and Ball Aerospace optical engineer Larkin Carey inspect the protective barrier behind Webb\u2019s primary mirror called \u201cFrill.\u201d This lightweight blanketing plays an important role on the observatory as it blocks undesirable light from reaching the telescope\u2019s sensitive infrared sensors.
Credits: NASA\/Chris Gunn <\/figcaption><\/figure>\n\n\n\n

The James Webb Space Telescope will be the world’s premier space \nscience observatory. Webb will solve mysteries of our solar system, look\n beyond to distant worlds around other stars, and probe the mysterious \nstructures and origins of our universe and our place in it. Webb is an \ninternational project led by NASA with its partners, ESA (European Space\n Agency) and the Canadian Space Agency.<\/p>\n\n\n\n

For more information about Webb, visit: www.nasa.gov\/webb<\/a><\/p>\n\n\n\n

https:\/\/www.nasa.gov\/feature\/goddard\/2019\/nasa-s-webb-telescope-mirrors-utilize-innovative-space-shielding<\/a><\/p>\n","protected":false},"excerpt":{"rendered":"

To observe objects in the distant cosmos, and to do science that\u2019s never been done before, NASA\u2019s James Webb Space Telescopes\u2019 scientific instruments need to be cooled down to a temperature so cold, it would freeze the oxygen in Earth\u2019s atmosphere solid. Intentionally chilling the telescope mirrors and instruments with innovative technologies and intelligent spacecraft […]<\/p>\n","protected":false},"author":2,"featured_media":0,"comment_status":"closed","ping_status":"open","sticky":false,"template":"","format":"standard","meta":{"footnotes":""},"categories":[18],"tags":[],"_links":{"self":[{"href":"http:\/\/energyholding.world\/index.php?rest_route=\/wp\/v2\/posts\/2984"}],"collection":[{"href":"http:\/\/energyholding.world\/index.php?rest_route=\/wp\/v2\/posts"}],"about":[{"href":"http:\/\/energyholding.world\/index.php?rest_route=\/wp\/v2\/types\/post"}],"author":[{"embeddable":true,"href":"http:\/\/energyholding.world\/index.php?rest_route=\/wp\/v2\/users\/2"}],"replies":[{"embeddable":true,"href":"http:\/\/energyholding.world\/index.php?rest_route=%2Fwp%2Fv2%2Fcomments&post=2984"}],"version-history":[{"count":4,"href":"http:\/\/energyholding.world\/index.php?rest_route=\/wp\/v2\/posts\/2984\/revisions"}],"predecessor-version":[{"id":3017,"href":"http:\/\/energyholding.world\/index.php?rest_route=\/wp\/v2\/posts\/2984\/revisions\/3017"}],"wp:attachment":[{"href":"http:\/\/energyholding.world\/index.php?rest_route=%2Fwp%2Fv2%2Fmedia&parent=2984"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"http:\/\/energyholding.world\/index.php?rest_route=%2Fwp%2Fv2%2Fcategories&post=2984"},{"taxonomy":"post_tag","embeddable":true,"href":"http:\/\/energyholding.world\/index.php?rest_route=%2Fwp%2Fv2%2Ftags&post=2984"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}