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Science 9: Unit E: Space Exploration
Science 9: Unit E: Space Exploration

... atmosphere distorts the image of the stars and planets; that’s why stars twinkle in the sky. A way around this problem is to build telescopes where the atmosphere is thinner like on mountain tops. Another method is to have a computer measure the amount of distortion from the atmosphere and change th ...
THE BALTIMORE SUN, Feb. 3, 2004, "Hubble sees key elements in
THE BALTIMORE SUN, Feb. 3, 2004, "Hubble sees key elements in

... after the Columbia disaster. The Hubble’s latest discovery will appear in the forthcoming issue of Astrophysical Journal Letters, reported by a team of French, American, Canadian and Swiss astronomers, led by Alfred Vidal-Madjar, of the Institut d’Astrophysique de Paris. Osiris was discovered in 199 ...
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... of  46  billion  light  years.   B.  The  universe  is  ge@ng  larger.   1.  There  are  galaxies  moving  out  and   away  from  earth  in  every  direcCon.   2.  This  is  evidence  of  how  the   universe  may  have  started.   a.  B ...
Astronomy Quiz 2
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... 7. Which theory do many astronomers believe explains that the universe began with a period of extreme and rapid expansion? a. Big Bang Theory c. Red Shift Theory b. Radiation Theory d. Butterfly Effect Theory 8. Based on evidence of the Red Shift of stars and galaxies, scientist now know that a. sta ...
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SWFAS Apr 16 Newsletter - Southwest Florida Astronomical Society

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Jeopardy - Effingham County Schools

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... through a telescope that uses a simple lens are surrounded by fuzzy, rainbowcolored halos If the telescope designer carefully chooses two different kinds of glass for two lenses that make up the one, different colors of light can be brought to a focus at the same point ...
Bolometers evolution - Chalmers University of Technology
Bolometers evolution - Chalmers University of Technology

... •Telescope diameter: D=0.6 m . •Wavelengths: submillimeter bands: 0.2- 2 mm . •Cooling: telescope - 5K, detectors - 0.1-0.25 K . •Detectors: bolometer arrays 10-18 W/Hz1/2 ...
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2007_AO - University of Hawaii

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Spitzer Space Telescope



The Spitzer Space Telescope (SST), formerly the Space Infrared Telescope Facility (SIRTF), is an infrared space observatory launched in 2003. It is the fourth and final of the NASA Great Observatories program.The planned mission period was to be 2.5 years with a pre-launch expectation that the mission could extend to five or slightly more years until the onboard liquid helium supply was exhausted. This occurred on 15 May 2009. Without liquid helium to cool the telescope to the very low temperatures needed to operate, most of the instruments are no longer usable. However, the two shortest-wavelength modules of the IRAC camera are still operable with the same sensitivity as before the cryogen was exhausted, and will continue to be used in the Spitzer Warm Mission. All Spitzer data, from both the primary and warm phases, are archived at the Infrared Science Archive (IRSA).In keeping with NASA tradition, the telescope was renamed after its successful demonstration of operation, on 18 December 2003. Unlike most telescopes that are named after famous deceased astronomers by a board of scientists, the new name for SIRTF was obtained from a contest open to the general public.The contest led to the telescope being named in honor of astronomer Lyman Spitzer, who had promoted the concept of space telescopes in the 1940s. Spitzer wrote a 1946 report for RAND Corporation describing the advantages of an extraterrestrial observatory and how it could be realized with available or upcoming technology. He has been cited for his pioneering contributions to rocketry and astronomy, as well as ""his vision and leadership in articulating the advantages and benefits to be realized from the Space Telescope Program.""The US$800 million Spitzer was launched from Cape Canaveral Air Force Station, on a Delta II 7920H ELV rocket, Monday, 25 August 2003 at 13:35:39 UTC-5 (EDT).It follows a heliocentric instead of geocentric orbit, trailing and drifting away from Earth's orbit at approximately 0.1 astronomical unit per year (a so-called ""earth-trailing"" orbit). The primary mirror is 85 centimeters (33 in) in diameter, f/12, made of beryllium and is cooled to 5.5 K (−449.77 °F). The satellite contains three instruments that allow it to perform astronomical imaging and photometry from 3 to 180 micrometers, spectroscopy from 5 to 40 micrometers, and spectrophotometry from 5 to 100 micrometers.
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