Feed Editor 23 Jan 2009 21:14:34 GMT NASA's Dawn Multimedia RSS feed keeps you up-to-date with the latest mission images, podcasts, interactives and videos. http://dawn.jpl.nasa.gov en <p><a href="http://dawn.jpl.nasa.gov/technology/GRaND_inter.asp" target="'_blank'"><span style="font-weight:bold;"><span style="color:blue;">Interactive Featuring the Visible and Infrared Imaging Spectrometer</span> </span><br /></a></p><p>VIR is a Visual and Infrared Imaging Spectrometer in a single head. The Visible and Infrared (VIR) Mapping Spectrometer &quot;sees&quot; from 0.3-5 microns covering the near ultraviolet (UV), visible and infrared regions of the spectrum. The instrument produces an image of the spectrum and has on board its own calibration lamp, which it imaged as part of the tests performed in the weeks after launch.<br /><br />A data cube is a 3-D array of numbers representing spatial and spectral images of a target in space. In the example in this interactive, light reflected off of and emitted from Earth is focused on the visible and infrared sensors by the telescope and spectrometer, and is stored as a data cube. A two-dimensional image is captured at each frequency, or wavelength of light. The set of images is then stacked to form the three-dimensional cube. Thus, the multi- spectral imaging spectrometer provides both spectral images and spatially specific spectra.</p><p><a href="http://dawn.jpl.nasa.gov/technology/VIR_inter.asp">+ See Interactive</a></p> 14 Nov 2009 21:35:28 GMT http://dawn.jpl.nasa.gov/technology/vir_inter.asp E198037E-FB51-49A7-B0E0-CD5479E0E284 <p><a href="http://dawn.jpl.nasa.gov/technology/GRaND_inter.asp" target="'_blank'"><span style="font-weight:bold;"><span style="color:blue;">Interactive Featuring the Gamma Ray and Neutron Detector (GRaND) Instrument</span><br /></span></a></p><p>The Gamma Ray and Neutron Dectector (GRaND) instrument inacteractive illustrates how scientists learn about the composition of an asteroid by studying energy and neutrons that eminate from it. The Dawn spacecraft contains three instruments (GRaND, Visible Infrared Spectrometer, and the Framing Camera) that will provide new answers to questions about the formation and evolution of the early solar system.</p><p><a href="http://dawn.jpl.nasa.gov/technology/GRaND_inter.asp">+ See Interactive</a></p> 14 Feb 2009 04:16:05 GMT http://dawn.jpl.nasa.gov/technology/GRaND_inter.asp CEE05385-6DBE-449E-835D-7F6B81F6377A <p><a href="http://dawn.jpl.nasa.gov/technology/GRaND_inter.asp" target="'_blank'"><span style="font-weight:bold;">Visit the Dawn Multimedia SiteImage Galleries</span><br /><br /></a><a href="image_gallery.asp"><strong> </strong></a><strong>Image Galleries</strong><br /> View image galleries depicting facets of the Dawn mission and spacecraft.<br /><a href="http://dawn.jpl.nasa.gov/multimedia/image_gallery.asp" target="'_blank'">+ Image Galleries</a></p><p><strong>Interactives</strong><br />Interact with the Dawn mission through simulations and learning tools.<br /><a href="http://dawn.jpl.nasa.gov/multimedia/interactives.asp" target="'_blank'">+ Interactives</a></p><p><strong>Mission Art</strong><br /> Access artwork depicting various aspects of the Dawn mission.<br /><a href="http://dawn.jpl.nasa.gov/multimedia/mission_art.asp" target="'_blank'">+ Dawn mission art</a></p><p><strong>Videos/Audio</strong><br /> Enjoy mission-related videos, audio clips, podcasts and animated shorts.<br /><a href="http://dawn.jpl.nasa.gov/multimedia/videos.asp" target="'_blank'">+ Videos/Audio</a></p><p> </p><p> </p> 2 Feb 2009 21:55:12 GMT http://dawn.jpl.nasa.gov/multimedia BDB60ECA-D55F-4CF2-A257-573D0882CC41