http://www.rssboard.org/rss-specification 720 http://ecuip-xtf.lib.uchicago.edu/xtf/search?f1-subject%3DXRS-2;expand%3Dsubject Results for your query: f1-subject=XRS-2;expand=subject Thu, 01 Jan 1970 12:00:00 GMT http://ecuip-xtf.lib.uchicago.edu/xtf/view?docId=grxr/NASA-Microshutter/NASA-Microshutter.dc.xml The James Webb Space Telescope's (JWST) Near-infrared Spectrograph will use microshutters that act like tiny doorways to block unwanted light from nearby objects in space, while allowing light from very distant stars and galaxies to shine through. The microshutters are assembled as an array about the size of a postage stamp. Each array contains over 62,000 shutters. Individually, each microshutter measures 100 by 200 microns, or about the width of a human hair. The telescope will contain four of these microshutter arrays. http://ecuip-xtf.lib.uchicago.edu/xtf/view?docId=grxr/NASA-Microshutter/NASA-Microshutter.dc.xml Thu, 01 Jan 1970 12:00:00 GMT http://ecuip-xtf.lib.uchicago.edu/xtf/view?docId=grxr/XRS-2/XRS-2.dc.xml The XRS (X-ray Spectrometer) originated from Harvey's early ideas. This image shows the the second XRS in its front-end assembly which is filled with helium to keep the detector extrememly cold. The small, silvery blocking filter at the center of the image prevents optical, ultraviolet, and infrared light from entering the detector behind it, but allows X-rays to pass through. XRS-2 was launched on the Japanese spacecraft Suzaku in 2005, but it failed after launch. The first of the spectrometers, XRS-1, launched on the Astro-E spacecraft in 2000, but the launch failed and the spacecraft was destroyed. http://ecuip-xtf.lib.uchicago.edu/xtf/view?docId=grxr/XRS-2/XRS-2.dc.xml Thu, 01 Jan 1970 12:00:00 GMT