Astronomers using the Very Energetic Radiation Imaging Telescope Array System (VERITAS), in Amado, Arizona, have recently announced that they discovered very high energy (VHE) gamma-ray emissions coming in from the starburst galaxy M82, also known as the Cigar Galaxy. According to the team, the radiations are very po... |
3 November 2009
02:52 GMT |
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NASA's Swift satellite is the first spacecraft to have spotted the first signs from the earliest known explosion in the entire Universe. The phenomenon is believed to have taken place about 13 billion years ago, when the Cosmos was just around 700 million years old. The star that exploded sent forth a massive am... |
29 October 2009
02:57 GMT |
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Gamma-ray Bursts (GRB) are arguably among the deadliest phenomena that can take place in the Universe. Believed to be generated in the dying throes of massive stars, these emissions exit the stars as jets of plasma, which then proceed to traveling billions of light-years in all directions. The high-energy particles t... |
19 September 2009
03:54 GMT |
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The NASA American space agency has recently identified, through its SWIFT satellite, the oldest-ever-detected gamma-ray burst (GRB) in the Universe, originating some 630 million years after the Big Bang. This means that the star that collapsed to generate the GRB ended its life cycle a good 370 million years before t... |
29 April 2009
03:22 GMT |
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SN 2008D, a supernova explosion detected by NASA's Swift X-ray Space Telescope inside the galaxy NGC 2770 on January 9, 2009, might have actually been triggered by the gravitational collapse of a massive star into a black hole, say researchers from the Max Planck Institute for Astrophysics, who claim that the ev... |
25 July 2008
06:51 GMT |
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The most powerful gamma-ray emission ever seen in the universe was detected yesterday by the Swift satellite, and originated from an area of space more than seven thousand times further away than the distance to the Andromeda galaxy. It was probably created by a massive star in the final stages of life that collapsed... |
20 March 2008
11:30 GMT |
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GRB's, or gamma-ray bursts, are the most powerful radiation emissions released during cosmic collisions between massive objects such as neutron stars or possibly black holes. Most of the gamma-ray bursts received from the interstellar medium usually present long period bursts, which are thought to be produced b... |
9 January 2008
05:22 GMT |
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From time to time, a huge explosion followed by a bright flash of light can be observed in space. It's a colossal gamma-ray burst (GRB), emitting for a few seconds as much radiation as a million galaxies.They are the most luminous events known in the universe since the Big Bang. They are flashes of gamma rays,... |
1 May 2007
16:31 GMT |
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