http://www.rssboard.org/rss-specification 720 http://ecuip-xtf.lib.uchicago.edu/xtf/search?expand%3Dspectral-Type;f1-spectral-Type%3DOptical;f2-type%3DPhotographic Results for your query: expand=spectral-Type;f1-spectral-Type=Optical;f2-type=Photographic Thu, 01 Jan 1970 12:00:00 GMT http://ecuip-xtf.lib.uchicago.edu/xtf/view?docId=grxr/04.20.2012.S95YERKESpolarisstackedImage/04.20.2012.S95YERKESpolarisstackedImage.dc.xml Can you find the satellite in this time-lapse photo of the night sky over Yerkes Observatory in Williams Bay, Wisconsin? http://ecuip-xtf.lib.uchicago.edu/xtf/view?docId=grxr/04.20.2012.S95YERKESpolarisstackedImage/04.20.2012.S95YERKESpolarisstackedImage.dc.xml Fri, 20 Apr 2012 12:00:00 GMT http://ecuip-xtf.lib.uchicago.edu/xtf/view?docId=grxr/PIA02254/PIA02254.dc.xml Voyager 2 took this picture of Io July 10, 1979, from a range of 1.2 million kilometers (750,000 miles). The image was part of an extensive sequence of "volcano watch" pictures of Io. The sunlit crescent of Io is seen at the left, and the night side illuminated by light reflected from Jupiter can also be seen. Three volcanic eruption plumes are visible on the limb. All three were previously seen by Voyager 1. On the bright limb Plume 5 (upper) and Plume 6 (lower) are about 100 kilometers high, while Plume 2 on the dark limb is about 185 kilometers high and 325 kilometers wide. The "volcano watch" sequence of pictures told us that these volcanoes are persistent, change with time, and are larger and last longer than those on Earth. http://ecuip-xtf.lib.uchicago.edu/xtf/view?docId=grxr/PIA02254/PIA02254.dc.xml Tue, 10 Jul 1979 12:00:00 GMT http://ecuip-xtf.lib.uchicago.edu/xtf/view?docId=grxr/m100after/m100after.dc.xml This image was taken with Hubble's Wide Field and Planetary Camera 2, installed to correct Hubble's optics. The difference in clarity is dramatic and represents the realization of the anticipated quality of images from a space-based, optical telescope. http://ecuip-xtf.lib.uchicago.edu/xtf/view?docId=grxr/m100after/m100after.dc.xml Thu, 01 Jan 1970 12:00:00 GMT http://ecuip-xtf.lib.uchicago.edu/xtf/view?docId=grxr/m100before/m100before.dc.xml This image was taken before the optics was fixed and demonstrates that the optical error generates images that are not much better than images taken with ground-based telescopes and were much less clear than expected. The picture is from the Wide Field and Planetary Camera 1. http://ecuip-xtf.lib.uchicago.edu/xtf/view?docId=grxr/m100before/m100before.dc.xml Thu, 01 Jan 1970 12:00:00 GMT