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High-Energy Astrophysics News

Welcome to our archive of past news articles.
You will find previous articles listed below from most the recent back to our first articles in 1996.


Link to article NASA's Fermi Telescope Finds Giant Bubble Structure in our Galaxy
[30 November 2010]
- NASA's Fermi Gamma-ray Space Telescope has unveiled a previously unseen structure centered in the Milky Way. The feature spans 50,000 light-years and may be the remnant of an eruption from a supersized black hole at the center of our galaxy.

Link to article NASA's WMAP Project Completes Satellite Operations
[07 October 2010]
- After nine years of scanning the sky, the Wilkinson Microwave Anisotropy Probe (WMAP) has concluded its observations of the cosmic microwave background, the oldest light in the universe. The spacecraft has not only given scientists their best look at this remnant glow, but also established the scientific model that describes the history and structure of the universe.

Link to article Eclipsing Pulsar Promises Clues to Crushed Matter
[15 September 2010]
- Astronomers using NASA's Rossi X-ray Timing Explorer (RXTE) have found the first fast X-ray pulsar to be eclipsed by its companion star. Further studies of this unique stellar system will shed light on some of the most compressed matter in the universe and test a key prediction of Einstein's relativity theory.

Link to article NASA's Swift Survey finds 'Smoking Gun' of Black Hole Activation
[27 May 2010]
- Data from an ongoing survey by NASA's Swift satellite have helped astronomers solve a decades-long mystery about why a small percentage of supermassive black holes emit vast amounts of energy.

Link to article Mysterious Cosmic 'Dark Flow' Tracked Deeper into Universe
[12 March 2010]
- Astronomers have found distant galaxy clusters that are mysteriously moving at a million miles per hour along a path roughly centered on the southern constellations Centaurus and Hydra. A new study led by Alexander Kashlinsky at NASA's Goddard Space Flight Center in Greenbelt, Md., tracks this collective motion, a motion that has been called "dark flow".

Link to article Nature's Most Precise Clocks May Make "Galactic GPS" Possible
[08 January 2010]
- Radio astronomers have uncovered 17 millisecond pulsars in our galaxy by studying otherwise unidentified sources detected by NASA's Fermi Gamma-ray Space Telescope. The astronomers discovered all these pulsars within a span of less than three months. Locating these hard-to-find objects so rapidly holds the promise of using them as a kind of "galactic GPS" to detect gravitational waves passing near Earth.

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A service of the High Energy Astrophysics Science Archive Research Center (HEASARC), Dr. Alan Smale (Director), within the Astrophysics Science Division (ASD) at NASA/GSFC

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