<div dir="ltr"><div dir="ltr"><div dir="ltr"><div dir="ltr"><div dir="ltr"><div dir="ltr"><p style="margin:0px 0px 1.5em;padding:0px;color:rgb(0,0,0);font-family:"Open Sans",Arial,Helvetica,sans-serif;font-size:17.28px">All quotes below from websites.</p><p style="margin:0px 0px 1.5em;padding:0px;color:rgb(0,0,0);font-family:"Open Sans",Arial,Helvetica,sans-serif">Vision2020 Post: Ted Moffett</p><p style="margin:0px 0px 1.5em;padding:0px;color:rgb(0,0,0);font-family:"Open Sans",Arial,Helvetica,sans-serif">---------------------------------------</p><p style="margin:0px 0px 1.5em;padding:0px;color:rgb(0,0,0);font-family:"Open Sans",Arial,Helvetica,sans-serif;font-size:17.28px"><a href="https://www.nasa.gov/press-release/nasa-readies-james-webb-space-telescope-for-december-launch" style="font-size:17.28px">NASA Readies James Webb Space Telescope for December Launch | NASA</a><br></p><p style="margin:0px 0px 1.5em;padding:0px;color:rgb(0,0,0);font-family:"Open Sans",Arial,Helvetica,sans-serif;font-size:17.28px"></p><p style="box-sizing:border-box;margin:0px 0px 15px;color:rgb(0,0,0);font-size:14px;line-height:1.4em;font-family:"Helvetica Neue",Helvetica,Arial,sans-serif;font-style:normal;font-variant-ligatures:normal;font-variant-caps:normal;font-weight:400;letter-spacing:normal;text-align:start;text-indent:0px;text-transform:none;white-space:normal;word-spacing:0px;background-color:rgb(255,255,255);text-decoration-style:initial;text-decoration-color:initial"></p><p></p><p style="box-sizing:border-box;margin:0px 0px 15px;color:rgb(0,0,0);font-size:14px;line-height:1.4em;font-family:"Helvetica Neue",Helvetica,Arial,sans-serif;font-style:normal;font-variant-ligatures:normal;font-variant-caps:normal;font-weight:400;letter-spacing:normal;text-align:start;text-indent:0px;text-transform:none;white-space:normal;word-spacing:0px;background-color:rgb(255,255,255);text-decoration-style:initial;text-decoration-color:initial">NASA plans to launch the James Webb Space Telescope into orbit Dec. 18, 2021, to serve as the premier deep space observatory for the next decade.</p><p style="box-sizing:border-box;margin:0px 0px 15px;color:rgb(0,0,0);font-size:14px;line-height:1.4em;font-family:"Helvetica Neue",Helvetica,Arial,sans-serif;font-style:normal;font-variant-ligatures:normal;font-variant-caps:normal;font-weight:400;letter-spacing:normal;text-align:start;text-indent:0px;text-transform:none;white-space:normal;word-spacing:0px;background-color:rgb(255,255,255);text-decoration-style:initial;text-decoration-color:initial">-------------------------------------------</p><p style="box-sizing:border-box;margin:0px 0px 15px;color:rgb(0,0,0);font-size:14px;line-height:1.4em;font-family:"Helvetica Neue",Helvetica,Arial,sans-serif;font-style:normal;font-variant-ligatures:normal;font-variant-caps:normal;font-weight:400;letter-spacing:normal;text-align:start;text-indent:0px;text-transform:none;white-space:normal;word-spacing:0px;background-color:rgb(255,255,255);text-decoration-style:initial;text-decoration-color:initial"></p><p style="box-sizing:border-box;margin:0px 0px 15px;color:rgb(0,0,0);font-size:14px;line-height:1.4em;font-family:"Helvetica Neue",Helvetica,Arial,sans-serif;font-style:normal;font-variant-ligatures:normal;font-variant-caps:normal;font-weight:400;letter-spacing:normal;text-align:start;text-indent:0px;text-transform:none;white-space:normal;word-spacing:0px;background-color:rgb(255,255,255);text-decoration-style:initial;text-decoration-color:initial"></p><p></p><p style="box-sizing:border-box;margin:0px 0px 15px;color:rgb(0,0,0);font-size:14px;line-height:1.4em;font-family:"Helvetica Neue",Helvetica,Arial,sans-serif;font-style:normal;font-variant-ligatures:normal;font-variant-caps:normal;font-weight:400;letter-spacing:normal;text-align:start;text-indent:0px;text-transform:none;white-space:normal;word-spacing:0px;background-color:rgb(255,255,255);text-decoration-style:initial;text-decoration-color:initial">Webb, an international program led by NASA with its partners ESA (European Space Agency) and the Canadian Space Agency, will launch on an Ariane 5 from Europe's Spaceport in French Guiana on the northeastern coast of South America. ESA is providing the Ariane 5.</p><p style="margin:0px 0px 1.5em;padding:0px;color:rgb(0,0,0);font-family:"Open Sans",Arial,Helvetica,sans-serif;font-size:17.28px">-----------------------------------</p><p style="margin:0px 0px 1.5em;padding:0px;color:rgb(0,0,0);font-family:"Open Sans",Arial,Helvetica,sans-serif;font-size:17.28px"><a href="https://www.jwst.nasa.gov/content/about/innovations/cryocooler.html">Cryocooler Webb/NASA</a><br></p><p style="margin:0px 0px 1.5em;padding:0px;color:rgb(0,0,0);font-family:"Open Sans",Arial,Helvetica,sans-serif;font-size:17.28px">However, Webb's fourth scientific instrument, the Mid-infrared Instrument, or MIRI, "sees" mid-infrared (MIR) light at wavelengths from 5 to 28 microns. By necessity MIRI's detectors are a different formulation (Arsenic-doped Silicon (Si:As)), which need to be at a temperature of less than 7 kelvin to operate properly. This temperature is not possible on Webb by passive means alone, so Webb carries a "cryocooler" that is dedicated to cooling MIRI's detectors.</p><div><br></div><p style="margin:0px 0px 1.5em;padding:0px;color:rgb(0,0,0);font-family:"Open Sans",Arial,Helvetica,sans-serif;font-size:17.28px"></p></div></div></div></div></div></div>