News tagged with gamma ray sky
Active galaxies flare and fade in Fermi telescope all-sky movie (w/Video)
The gamma-ray sky comes alive in a movie made from data acquired by NASA's Fermi Gamma-ray Space Telescope during its first three months of operations. Gamma rays from sources near and far turn the sky into ...
Apr 24, 2009 |
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Fermi telescope reveals best-ever view of the gamma-ray sky
(PhysOrg.com) -- A new map combining nearly three months of data from NASA's Fermi Gamma-ray Space Telescope is giving astronomers an unprecedented look at the high-energy cosmos. To Fermi's eyes, the universe ...
Mar 11, 2009 |
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Search results for gamma ray sky
NASA small explorer mission celebrates ten years and forty thousand X-ray flares
(PhysOrg.com) -- On February 5, 2002, NASA launched what was then called the High Energy Solar Spectroscopic Imager (HESSI) into orbit. Renamed within months as the Ramaty High Energy Solar Spectroscopic Imager ...
Space & Earth / Space Exploration
Feb 09, 2012 |
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Radio stars: Caltech's astronomy professor searches for cosmic radio waves
Growing up in rural northwest Ireland, beyond the reach of city lights, Gregg Hallinan fell in love with the night sky. "When you didn't have bad weather, and you didn't have clouds, the skies were nothing ...
Feb 03, 2012 |
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Binary star system found by following gamma-ray signal
(PhysOrg.com) -- To find a binary star system, which is where two stars are in close proximity to one another, astronomers have traditionally relied on pure luck. They’d first start studying what would look like a single ...
Jan 13, 2012 |
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Fermi telescope explores new energy extremes
(PhysOrg.com) -- After more than three years in space, NASA's Fermi Gamma-ray Space Telescope is extending its view of the high-energy sky into a largely unexplored electromagnetic range. Today, the Fermi ...
Jan 10, 2012 |
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Krawczynski group receives NASA grant to spy on black holes
(PhysOrg.com) -- Henric Krawczynski, PhD, professor of physics in Arts & Sciences at Washington University in St. Louis, is a big-game hunter of the astrophysical variety — he hunts celestial beasts, ...
Space & Earth / Space Exploration
Jan 06, 2012 |
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Fear no supernova
Given the incredible amounts of energy in a supernova explosion – as much as the sun creates during its entire lifetime – another erroneous doomsday theory is that such an explosion could happen ...
Dec 16, 2011 |
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Fermi shows that Tycho's star shines in gamma rays
(PhysOrg.com) -- In early November 1572, observers on Earth witnessed the appearance of a "new star" in the constellation Cassiopeia, an event now recognized as the brightest naked-eye supernova in more than ...
Dec 13, 2011 |
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Has our black hole been blowing bubbles?
Our galaxy is a relatively quiet neighbourhood with the supermassive black hole at its heart gently dozing: or is it?
Dec 01, 2011 |
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In the heart of Cygnus, NASA's Fermi reveals a cosmic-ray cocoon
(PhysOrg.com) -- The constellation Cygnus, now visible in the western sky as twilight deepens after sunset, hosts one of our galaxy's richest-known stellar construction zones. Astronomers viewing the region ...
Nov 28, 2011 |
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Beacons in space
Pulsars are among the most exotic objects in the universe. They resemble gigantic atomic nuclei and rotate around their own axis at an incredible speed. These cosmic beacons mark the end of massive suns. Theoretically ...
Nov 03, 2011 |
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List of search results for gamma ray sky
