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Huge gamma-ray bubbles found extending from Milky Way
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Lynn Send message Joined: 20 Nov 00 Posts: 14162 Credit: 79,603,650 RAC: 123 |
The unexpected discovery suggests a colossal event in our galaxy's past, releasing energy equivalent to 100,000 exploding stars. But scientists don't yet know what that event might have been. Startled astronomers said Tuesday they had discovered two massive bubbles of gamma-ray energy extending 25,000 light-years above and below the plane of the Milky Way galaxy like a squat hourglass. Please read more... http://www.latimes.com/news/science/la-sci-1110-energy-bubbles-20101110,0,5062292.story This NASA illustration depicts the twin bubbles of high-energy gamma rays protruding from the Milky Way, which are believed to be nearly as big as the galaxy itself. (NASA / November 9, 2010) |
Dirk Villarreal Wittich Send message Joined: 25 Apr 00 Posts: 2098 Credit: 434,834 RAC: 0 |
Only two words: Fascinating Amazing. Thanks for sharing. |
ML1 Send message Joined: 25 Nov 01 Posts: 20283 Credit: 7,508,002 RAC: 20 |
Only two words: Wow indeed! Another possibility not covered by the article is that the 'bubbles' might be a present day 'illumination' effect from ongoing activity from or near the black hole at the centre of our galaxy. A galactic 'heliosheath' even?! Keep searchin', Martin See new freedom: Mageia Linux Take a look for yourself: Linux Format The Future is what We all make IT (GPLv3) |
Lynn Send message Joined: 20 Nov 00 Posts: 14162 Credit: 79,603,650 RAC: 123 |
Wow! Is right. Your all welcome. This is a NASA link. http://www.nasa.gov/mission_pages/GLAST/news/new-structure.html NASA's Fermi Telescope Finds Giant Structure in our Galaxy A giant gamma-ray structure was discovered by processing Fermi all-sky data at energies from 1 to 10 billion electron volts, shown here. The dumbbell-shaped feature (center) emerges from the galactic center and extends 50 degrees north and south from the plane of the Milky Way, spanning the sky from the constellation Virgo to the constellation Grus. Credit: NASA/DOE/Fermi LAT/D. Finkbeiner et al. |
Iulian Nastasache Send message Joined: 13 Jan 07 Posts: 14 Credit: 632,744 RAC: 0 |
Interesting: NASA Announces Televised Chandra News Conference WASHINGTON -- NASA will hold a news conference at 12:30 p.m. EST on Monday, Nov. 15, to discuss the Chandra X-ray Observatory's discovery of an exceptional object in our cosmic neighborhood. [...] http://www.nasa.gov/home/hqnews/2010/nov/HQ_M10-157_Chandra_Update.html Mens sana in corpore ETI & Maze |
skildude Send message Joined: 4 Oct 00 Posts: 9541 Credit: 50,759,529 RAC: 60 |
since we see jets of gamma rays being emitted from other galaxies "blackholes" why wouldnt we see one from our own In a rich man's house there is no place to spit but his face. Diogenes Of Sinope |
tullio Send message Joined: 9 Apr 04 Posts: 8797 Credit: 2,930,782 RAC: 1 |
The object observed by Chandra is supernova 1979C, whose X-ray emission was discovered in 1995 by Chandra. It is possibly a young black hole or a pulsar, and its interest lies in the fact that we know its birthday, so we can watch its evolution and test the various models put forward to explain it. It would be very interesting to know if it is a binary system, perhaps emitting gravitational waves. It is not very far, in galaxy M101. Tullio |
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