http://www.rssboard.org/rss-specification 720 http://ecuip-xtf.lib.uchicago.edu/xtf/search?docsPerPage%3D100;f2-associated-Lesson%3DGamma%20Ray%20Impact Results for your query: docsPerPage=100;f2-associated-Lesson=Gamma Ray Impact 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/9601926/9601926.dc.xml Dr. Gerald Fishman of the Marshall Space Flight Center (MSFC), a principal investigator of the Compton Gamma-Ray Observatory's (GRO's) instrument, the Burst and Transient Source Experiment (BATSE), and Dr. Chryssa Kouveliotou of Universities Space Research Associates review data from the BATSE. http://ecuip-xtf.lib.uchicago.edu/xtf/view?docId=grxr/9601926/9601926.dc.xml Thu, 01 Jan 1970 12:00:00 GMT http://ecuip-xtf.lib.uchicago.edu/xtf/view?docId=grxr/BATSE_2704/BATSE_2704.dc.xml Each dot on the elliptal surface of this map represents the location of one of 2704 gamma-ray bursts detected by BATSE during its 9-year mission. The map’s perspective places the plane of the Milky Way centered horizontally across the map. The bursts are color-coordinated according to intensity with long, intense bursts colored red, and short, weaker bursts colored purple. Note that the majority of the bursts are colored green, which denote medium energy and/or duration. http://ecuip-xtf.lib.uchicago.edu/xtf/view?docId=grxr/BATSE_2704/BATSE_2704.dc.xml Thu, 01 Jan 1970 12:00:00 GMT http://ecuip-xtf.lib.uchicago.edu/xtf/view?docId=grxr/Keck_telescope_mount/Keck_telescope_mount.dc.xml The twin Keck telescopes are located on Mauna Kea, a dormant volcano in Hawaii. The telescopes are the largest optical and infrared telescopes in the world with segmented mirrors that are made up of 36 hexagonal shaped mirrors each. Each 10-inch telescope stands eight stories tall and weighs 300 tons. http://ecuip-xtf.lib.uchicago.edu/xtf/view?docId=grxr/Keck_telescope_mount/Keck_telescope_mount.dc.xml Thu, 01 Jan 1970 12:00:00 GMT http://ecuip-xtf.lib.uchicago.edu/xtf/view?docId=grxr/Marshall_NSSTC/Marshall_NSSTC.dc.xml The building in this photograph is the National Space Science and Technology Center in Huntsville, Alabama, is a laboratory for cutting-edge science and engineering research. It is a collaboration between NASA, Alabama universities, and other governmental agencies such as the National Science Foundation and the Department of Energy. This is where Chryssa works. http://ecuip-xtf.lib.uchicago.edu/xtf/view?docId=grxr/Marshall_NSSTC/Marshall_NSSTC.dc.xml Thu, 01 Jan 1970 12:00:00 GMT http://ecuip-xtf.lib.uchicago.edu/xtf/view?docId=grxr/Neutron_Star_Merge_H264_High_960x540/Neutron_Star_Merge_H264_High_960x540.dc.xml Gamma-ray bursts are common, yet random, and fleeting events that have mystified astronomers since their discovery in the late 1960s. Shorter bursts (less than two seconds in duration) are thought to be caused by mergers of binary systems with black holes or neutron stars. http://ecuip-xtf.lib.uchicago.edu/xtf/view?docId=grxr/Neutron_Star_Merge_H264_High_960x540/Neutron_Star_Merge_H264_High_960x540.dc.xml Thu, 01 Jan 1970 12:00:00 GMT http://ecuip-xtf.lib.uchicago.edu/xtf/view?docId=grxr/Swift-Soft-Gamma-Ray-Repeater-10366-date-overlay/Swift-Soft-Gamma-Ray_Repeater-10366-date-overlay.dc.xml Swift's X-Ray Telescope (XRT) captured an apparent expanding halo around the flaring neutron star SGR J1550-5418. The halo formed as X-rays from the brightest flares scattered off of intervening dust clouds. The animation shows the glow of the halo pulsing and dispersing over six days in January 2009. http://ecuip-xtf.lib.uchicago.edu/xtf/view?docId=grxr/Swift-Soft-Gamma-Ray-Repeater-10366-date-overlay/Swift-Soft-Gamma-Ray_Repeater-10366-date-overlay.dc.xml Thu, 01 Jan 1970 12:00:00 GMT http://ecuip-xtf.lib.uchicago.edu/xtf/view?docId=grxr/a010300_NeutronStar_NTSC/a010300_NeutronStar_NTSC.dc.xml Gamma-ray flares from SGR J1550-5418 may arise when the magnetar's surface suddenly cracks, releasing energy stored within its powerful magnetic field. http://ecuip-xtf.lib.uchicago.edu/xtf/view?docId=grxr/a010300_NeutronStar_NTSC/a010300_NeutronStar_NTSC.dc.xml Thu, 01 Jan 1970 12:00:00 GMT http://ecuip-xtf.lib.uchicago.edu/xtf/view?docId=grxr/aristotle-solar-system/aristotle-solar-system.dc.xml Illustration of Oronce Fine, Astronomy personified and an armillary sphere. http://ecuip-xtf.lib.uchicago.edu/xtf/view?docId=grxr/aristotle-solar-system/aristotle-solar-system.dc.xml Thu, 01 Jan 1970 12:00:00 GMT http://ecuip-xtf.lib.uchicago.edu/xtf/view?docId=grxr/armstrong_on_the_moon/armstrong_on_the_moon.dc.xml This is one of the few photographs of Neil Armstrong on the moon; most images are of Buzz Aldrin. Neil Armstrong is standing in the shadow of the Eagle lunar module. The image was captured by Buzz Aldrin. http://ecuip-xtf.lib.uchicago.edu/xtf/view?docId=grxr/armstrong_on_the_moon/armstrong_on_the_moon.dc.xml Thu, 01 Jan 1970 12:00:00 GMT http://ecuip-xtf.lib.uchicago.edu/xtf/view?docId=grxr/compton_inSpace/compton_inSpace.dc.xml The Compton Gamma Ray Observatory was launched into orbit aboard the Space Shuttle Atlantis in April 1991. The photograph was taken by a member of the shuttle crew through a window on the Atlantis shuttle as the astronauts use the shuttle arm to release the observatory into orbit. The earth is visible in the background. http://ecuip-xtf.lib.uchicago.edu/xtf/view?docId=grxr/compton_inSpace/compton_inSpace.dc.xml Mon, 01 Apr 1991 12:00:00 GMT http://ecuip-xtf.lib.uchicago.edu/xtf/view?docId=grxr/grb980425/grb980425.dc.xml The ESO 184-G82 galaxy has loose spiral arms with many bright regions where stars are forming. The inset shows an expanded view of one of the star-forming regions. The arrow shows the location the 1998 supernova explosion. This supernova was also a gamma ray source, showing supernova are the origin of some GRB's. http://ecuip-xtf.lib.uchicago.edu/xtf/view?docId=grxr/grb980425/grb980425.dc.xml Mon, 12 Jun 2000 12:00:00 GMT http://ecuip-xtf.lib.uchicago.edu/xtf/view?docId=grxr/grb_970228/grb_970228.dc.xml Eight hours after the detection of GRB 970228, BeppoSax was able to isolate an X-ray source at the location in the Orion constellation. This is the first X-ray counterpart data captured following a gamma-ray burst. http://ecuip-xtf.lib.uchicago.edu/xtf/view?docId=grxr/grb_970228/grb_970228.dc.xml Fri, 28 Feb 1997 12:00:00 GMT http://ecuip-xtf.lib.uchicago.edu/xtf/view?docId=grxr/ptolemy_cosmos/ptolemy_cosmos.dc.xml This image depicts the slow evolution of thought about the physics of the solar system in the mid-17th century. The shield on the left represents Copernicus's view of the Universe (1543) with the Sun at the center of the Universe and all of the planets, including the Earth moving around it. Copernicus's model was opposed by the Church which held that the Earth was the center of the Universe. The shield on the right depicts Tycho Brahe's model of the Universe (1588) which reconciles the Copernican model with the early Ptolemaic model (ca. 150) in which the Sun, Moon, planets, and stars all revolve around the Earth. Brahe's model allows that the other planets revolve around the Sun, but maintains that the Earth is the stationary center of the Universe around which the Sun, dragging all of the planets with it, as well as the Moon, revolve. Brahe's shield carries more weight (tilts the balance) in this picture because the Church, a powerful arbiter of scientific thought in the 17th century, supported Brahe's mode... http://ecuip-xtf.lib.uchicago.edu/xtf/view?docId=grxr/ptolemy_cosmos/ptolemy_cosmos.dc.xml Thu, 01 Jan 1970 12:00:00 GMT http://ecuip-xtf.lib.uchicago.edu/xtf/view?docId=grxr/vela5b_5/vela5b_5.dc.xml The Vela satellites provided much information useful to astronomers studying gamma radiation from space. Other Vela satellites operated for approximately one year, but Vela 5b was in service for more a decade, from 1969 to 1979. http://ecuip-xtf.lib.uchicago.edu/xtf/view?docId=grxr/vela5b_5/vela5b_5.dc.xml Thu, 01 Jan 1970 12:00:00 GMT