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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.

2003

Link to article Einstein Makes Extra Dimensions Toe The Line
[17 December 2003]
- Scientists say Albert Einstein's principle of the constancy of the speed of light holds up under extremely tight scrutiny, a finding that rules out certain theories predicting extra dimensions and a "frothy" fabric of space.


Link to article Most Distant X-Ray Jet Yet Discovered Provides Clues To Big Bang
[17 November 2003]
- The most distant jet ever observed was discovered in an image of a quasar made by NASA's Chandra X-ray Observatory. Extending more than 100,000 light-years from the supermassive black hole powering the quasar, the jet of high-energy particles provides astronomers with information about the intensity of the cosmic microwave background radiation 12 billion years ago.


Link to article Chandra "Hears" A Black Hole
[12 September 2003]
- NASA's Chandra X-ray Observatory detected sound waves, for the first time, from a super-massive black hole. The "note" is the deepest ever detected from an object in the universe. The tremendous amounts of energy carried by these sound waves may solve a longstanding problem in astrophysics.


Link to article Pulsars That Rock Space and Time
[02 September 2003]
- Envision a bright and beautiful spherical rock, about 10 miles across, packed so tightly and spinning so quickly -- at about 20 percent light speed -- that it actually shakes the fabric of space as if it were a bowl of Jello.


Link to article Rosetta Stone Decodes Gamma-Ray Burst Mystery
[26 June 2003]
- Scientists have pieced together the key elements of a gamma-ray burst, from star death to dramatic black hole birth, thanks to a "Rosetta stone" found on March 29, 2003.


Link to article Burst Behind the Sun Reveals Magnetic Charm of Distant Explosion
[10 June 2003]
- Sometimes astronomers plan for years to make a crucial scientific discovery, building a telescope to precise specifications, launching it into space, and conducting a series of long, careful surveys of stars and galaxies.


Link to article NASA Detects One Of Closest And Brightest Gamma Ray Bursts
[16 May 2003]
- The Universe clearly works weekends; delivering one of the brightest and closest gamma ray bursts yet on Saturday, March 29, at 6:37 a.m. EST.


Link to article The Hole Story? New Type of Black Hole Poses Challenges
[10 April 2003]
- A half-century ago, black holes were thought of as little more than bizarre, hypothetical ideas arising from some of Einstein's equations taken to their extreme. Today, black holes are accepted by astronomers as a basic component of the Universe.  Under the "standard model" of black holes, they come in two classes: the stellar and the supermassive.


Link to article Chandra Sees Shape Of Universe During Formative, Adolescent Years
[03 April 2003]
- Scientists using NASA's Chandra X-ray Observatory have taken a snapshot of the adolescent universe from about five billion years ago when the familiar web-like structure of galaxy chains and voids first emerged.


Link to article Race To Gamma Ray Burst Reveals Gigantic Explosion, Death, & Birth
[24 March 2003]
- Scientists arriving on the scene of a gamma ray burst, just moments after the explosion, have witnessed the death of a gigantic star and the birth of something monstrous in its place, quite possibly a brand-new, spinning black hole.


Link to article NASA Releases Stunning Images Of Our Infant Universe
[12 February 2003]
- NASA today released the best "baby picture" of the Universe ever taken; the image contains such stunning detail that it may be one of the most important scientific results of recent years.


Link to article Eta Carinae, a Home-Grown Mystery
[28 January 2003]
- Even as astronomers probe the farthest edges of the Universe billions of light years away to unlock its wondrous mysteries, there are still baffling mysteries right here in our own Milky Way Galaxy.  A big, beautiful star named Eta Carinae is one such example.  At the American Astronomical Society meeting in January, scientists presented new data about this enigmatic star that challenges long-held beliefs.


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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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