http://www.rssboard.org/rss-specification 720 http://ecuip-xtf.lib.uchicago.edu/xtf/search?docsPerPage%3D100;f4-associated-Lesson%3DX-ray%20Impact Results for your query: docsPerPage=100;f4-associated-Lesson=X-ray Impact Thu, 01 Jan 1970 12:00:00 GMT http://ecuip-xtf.lib.uchicago.edu/xtf/view?docId=grxr/484px-X-Ray_Explorer_Satellite_wikipedia/484px-X-Ray_Explorer_Satellite_wikipedia.dc.xml Marjorie Townsend and a colleague with the Uhuru satellite. Dr. Townsend, who was the Project Manager of the Small Astronomy Satellite Program, named the satellite Uhuru, which means freedom in Swahili. Uhuru would go on to detect evidence of black holes, neutron stars, and vast expanses of hot gas in systems containing thousands of galaxies. http://ecuip-xtf.lib.uchicago.edu/xtf/view?docId=grxr/484px-X-Ray_Explorer_Satellite_wikipedia/484px-X-Ray_Explorer_Satellite_wikipedia.dc.xml Wed, 02 Dec 1970 12:00:00 GMT http://ecuip-xtf.lib.uchicago.edu/xtf/view?docId=grxr/Chandra/Chandra.dc.xml Named in honor of the Nobel-prize winning Indian-American astrophysicist Subrahmanyan Chandrasekhar, the Chandra X-ray Observatory is the world’s most powerful X-ray telescope. It has eight-times greater resolution and can detect sources more than 20-times fainter than any previous X-ray telescope. http://ecuip-xtf.lib.uchicago.edu/xtf/view?docId=grxr/Chandra/Chandra.dc.xml Thu, 01 Jan 1970 12:00:00 GMT http://ecuip-xtf.lib.uchicago.edu/xtf/view?docId=grxr/GiacconiUhuruSatellite1970/GiacconiUhuruSatellite1970.dc.xml Riccardo Giacconi stands with the Uhuru satellite, circa 1970. http://ecuip-xtf.lib.uchicago.edu/xtf/view?docId=grxr/GiacconiUhuruSatellite1970/GiacconiUhuruSatellite1970.dc.xml Thu, 01 Jan 1970 12:00:00 GMT http://ecuip-xtf.lib.uchicago.edu/xtf/view?docId=grxr/Horsehead-Nebula-1902/Horsehead-Nebula-1902.dc.xml The Horsehead nebula is a dark interstellar cloud of dust and non-luminous gas situated 1,600 light years away in the direction of constellation Orion. This photographic image was made on January 25, 1900 by Isaac Roberts (1829-1904), an amateur astronomer. http://ecuip-xtf.lib.uchicago.edu/xtf/view?docId=grxr/Horsehead-Nebula-1902/Horsehead-Nebula-1902.dc.xml Thu, 01 Jan 1970 12:00:00 GMT http://ecuip-xtf.lib.uchicago.edu/xtf/view?docId=grxr/HorseheadNebulaSpaceTelescope/HorseheadNebulaSpaceTelescope.dc.xml The Horsehead Nebula is one of the most identifiable nebulae because of the shape of its swirling cloud of dark dust and gases, which resembles to a horse's head when viewed from Earth. http://ecuip-xtf.lib.uchicago.edu/xtf/view?docId=grxr/HorseheadNebulaSpaceTelescope/HorseheadNebulaSpaceTelescope.dc.xml Thu, 01 Jan 1970 12:00:00 GMT http://ecuip-xtf.lib.uchicago.edu/xtf/view?docId=grxr/M31-center-HST/M31-center-HST.dc.xml This Hubble Space Telescope image centers on the 100-million-solar-mass black hole at the hub of our neighboring spiral galaxy M31, the Andromeda Galaxy. It is one of the few galaxies outside of the Milky Way that is visible to the naked eye. This is the sharpest visible-light image ever made of the nucleus of an external galaxy. http://ecuip-xtf.lib.uchicago.edu/xtf/view?docId=grxr/M31-center-HST/M31-center-HST.dc.xml Thu, 01 Jan 1970 12:00:00 GMT http://ecuip-xtf.lib.uchicago.edu/xtf/view?docId=grxr/Nested-Paraboloid/Nested-Paraboloid.dc.xml This cutaway illustrates the grazing-incidence design and functioning of the High Resolution Mirror Assembly (HRMA) on the Chandra X-ray Observatory. http://ecuip-xtf.lib.uchicago.edu/xtf/view?docId=grxr/Nested-Paraboloid/Nested-Paraboloid.dc.xml Thu, 01 Jan 1970 12:00:00 GMT http://ecuip-xtf.lib.uchicago.edu/xtf/view?docId=grxr/Occhialini/Occhialini.dc.xml The Italian-Dutch Satellite for X-ray astronomy, Beppo-Sax, was named for Giuseppe Occhialini. The satellite played a crucial role in resolving the origin of gamma-ray bursts (GRBs). http://ecuip-xtf.lib.uchicago.edu/xtf/view?docId=grxr/Occhialini/Occhialini.dc.xml Thu, 01 Jan 1970 12:00:00 GMT http://ecuip-xtf.lib.uchicago.edu/xtf/view?docId=grxr/Rossi-and-Multiplate-Mirror/Rossi-and-Multiplate-Mirror.dc.xml Bruno Rossi standing before the multiplate cloud chamber used by his Cosmic Ray Group at MIT, 1954. http://ecuip-xtf.lib.uchicago.edu/xtf/view?docId=grxr/Rossi-and-Multiplate-Mirror/Rossi-and-Multiplate-Mirror.dc.xml Thu, 01 Jan 1970 12:00:00 GMT http://ecuip-xtf.lib.uchicago.edu/xtf/view?docId=grxr/Swift-ScoX-1/Swift-ScoX-1.dc.xml This image from the Swift X-ray Telescope shows an X-ray nova (designated J1745-26) and Scorpius X-1, along with the scale of moon, as they would appear in the field of view from Earth. http://ecuip-xtf.lib.uchicago.edu/xtf/view?docId=grxr/Swift-ScoX-1/Swift-ScoX-1.dc.xml Thu, 01 Jan 1970 12:00:00 GMT http://ecuip-xtf.lib.uchicago.edu/xtf/view?docId=grxr/V-2-rocket-at-White-Sands/V-2-rocket-at-White-Sands.dc.xml As the Army set to work with V-2 rockets at the White Sands Missile Range in New Mexico, scientific users were invited to fill the space of the 2000-pound warhead with instruments. E.O. Hulburt at the Naval Research Laboratory (NRL) Optics Division jumped at the chance. Between 1946 and 1951, the NRL undertook 80 experiments using V-2 rockets that provided new and valuable information about the nature of Earth's upper atmosphere and ionosphere. The first launch, on October 10, 1946, delivered the first recorded solar spectrum of the Sun from above Earth's atmosphere. http://ecuip-xtf.lib.uchicago.edu/xtf/view?docId=grxr/V-2-rocket-at-White-Sands/V-2-rocket-at-White-Sands.dc.xml Thu, 01 Jan 1970 12:00:00 GMT http://ecuip-xtf.lib.uchicago.edu/xtf/view?docId=grxr/Xray-crab/Xray-crab.dc.xml The Crab Nebula, some 6,000 light years from Earth, is the remnant of a supernova explosion. It was seen on Earth in the year 1054. At the center of the bright nebula is a rapidly spinning neutron star, or pulsar, that emits pulses of radiation 30 times a second. This view shows the Crab in the X-ray wavelength. http://ecuip-xtf.lib.uchicago.edu/xtf/view?docId=grxr/Xray-crab/Xray-crab.dc.xml Sun, 29 Aug 1999 12:00:00 GMT http://ecuip-xtf.lib.uchicago.edu/xtf/view?docId=grxr/chandra-deep-field/chandra-deep-field.dc.xml The Chandra Deep Field South refers to a location in space that offers a relatively clear view through the clouds of gas in our Galaxy, allowing us to clearly see the rest of the Universe in X-rays. This image was created by putting together multiple exposures from Chandra’s Advanced CCD Imaging Spectrometer for a cumulative exposure time of over one-million seconds. The multiwavelength observations of this region were carried out by a team led by Riccardo Giacconi in collaboration with scientists from the Very Large Telescope and the Paranal Observatory, both in Chile. Through the course of these investigations, the X-ray background was determined to originate from the central supermassive black holes of distant galaxies. http://ecuip-xtf.lib.uchicago.edu/xtf/view?docId=grxr/chandra-deep-field/chandra-deep-field.dc.xml Thu, 01 Jan 1970 12:00:00 GMT http://ecuip-xtf.lib.uchicago.edu/xtf/view?docId=grxr/giacconi-nobel/giacconi-nobel.dc.xml In 2002, Riccardo Giacconi shared the Nobel Prize in Physics, given to him for pioneering contributions to astrophysics, which have led to the discovery of cosmic X-ray sources. http://ecuip-xtf.lib.uchicago.edu/xtf/view?docId=grxr/giacconi-nobel/giacconi-nobel.dc.xml Thu, 01 Jan 1970 12:00:00 GMT http://ecuip-xtf.lib.uchicago.edu/xtf/view?docId=grxr/heao2_prepflight/heao2_prepflight.dc.xml Einstein Observatory (HEAO-2) was the first fully imaging X-ray telescope put into space and the second of NASA's three High Energy Astrophysical Observatories. Named HEAO-B before launch, the observatory's name was changed to honor Albert Einstein upon its successfully attaining orbit. http://ecuip-xtf.lib.uchicago.edu/xtf/view?docId=grxr/heao2_prepflight/heao2_prepflight.dc.xml Thu, 01 Jan 1970 12:00:00 GMT http://ecuip-xtf.lib.uchicago.edu/xtf/view?docId=grxr/hubble/hubble.dc.xml Named after astronomer Edwin Hubble, one of the Hubble Space Telescope’s key projects was to determine the rate of expansion of the Universe, called the Hubble Constant. http://ecuip-xtf.lib.uchicago.edu/xtf/view?docId=grxr/hubble/hubble.dc.xml Thu, 01 Jan 1970 12:00:00 GMT http://ecuip-xtf.lib.uchicago.edu/xtf/view?docId=grxr/infrared-crab/infrared-crab.dc.xml The Crab Nebula, some 6,000 light years from Earth, is the remnant of a supernova explosion. It was seen on Earth in the year 1054. At the center of the bright nebula is a rapidly spinning neutron star, or pulsar, that emits pulses of radiation 30 times a second. This view shows the Crab in the infrared wavelength. http://ecuip-xtf.lib.uchicago.edu/xtf/view?docId=grxr/infrared-crab/infrared-crab.dc.xml Thu, 01 Jan 1970 12:00:00 GMT http://ecuip-xtf.lib.uchicago.edu/xtf/view?docId=grxr/m31einstein/m31einstein.dc.xml This picture taken by the Einstein Observatory points to the galactic center of M31 - the Andromeda Galaxy - the nearest spiral galaxy to our Milky Way galaxy. Using more than 150 observations carried out over 13 years by the Chandra X-ray Observatory, researchers in 2013 identified 26 black hole candidates, the largest number to date, in the Andromeda Galaxy. http://ecuip-xtf.lib.uchicago.edu/xtf/view?docId=grxr/m31einstein/m31einstein.dc.xml Thu, 01 Jan 1970 12:00:00 GMT http://ecuip-xtf.lib.uchicago.edu/xtf/view?docId=grxr/optical-crab/optical-crab.dc.xml The Crab Nebula, some 6,000 light years from Earth, is the remnant of a supernova explosion. It was seen on Earth in the year 1054. At the center of the bright nebula is a rapidly spinning neutron star, or pulsar, that emits pulses of radiation 30 times a second. This view shows the Crab in the optical wavelength. http://ecuip-xtf.lib.uchicago.edu/xtf/view?docId=grxr/optical-crab/optical-crab.dc.xml Thu, 01 Jan 1970 12:00:00 GMT http://ecuip-xtf.lib.uchicago.edu/xtf/view?docId=grxr/radio-crab/radio-crab.dc.xml The Crab Nebula, some 6,000 light years from Earth, is the remnant of a supernova explosion. It was seen on Earth in the year 1054. At the center of the bright nebula is a rapidly spinning neutron star, or pulsar, that emits pulses of radiation 30 times a second. This view shows the Crab in the radio wavelength. http://ecuip-xtf.lib.uchicago.edu/xtf/view?docId=grxr/radio-crab/radio-crab.dc.xml Thu, 01 Jan 1970 12:00:00 GMT http://ecuip-xtf.lib.uchicago.edu/xtf/view?docId=grxr/uhuruExplode-72bigfromChandrasite/uhuruExplode-72bigfromChandrasite.dc.xml The Uhuru X-ray satellite, equipped with a relatively simple instrument - a sensitive X-ray detector similar to a Geiger counter attached to a viewing pipe to locate the source - made some astounding discoveries. http://ecuip-xtf.lib.uchicago.edu/xtf/view?docId=grxr/uhuruExplode-72bigfromChandrasite/uhuruExplode-72bigfromChandrasite.dc.xml Thu, 01 Jan 1970 12:00:00 GMT http://ecuip-xtf.lib.uchicago.edu/xtf/view?docId=grxr/uhuruLaunch-72/uhuruLaunch-72.dc.xml Awaiting launch from the San Marco Platform in Kenya, Uhuru was the first satellite specifically for the purpose of X-ray astronomy. It was also known as the X-ray Explorer Satellite SAS-A, for Small Astronomy Satellite A, being first of the three-spacecraft SAS series. http://ecuip-xtf.lib.uchicago.edu/xtf/view?docId=grxr/uhuruLaunch-72/uhuruLaunch-72.dc.xml Thu, 01 Jan 1970 12:00:00 GMT