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Latest Chandra X-ray Observatory Stories

de9887337d96050a7ed6137d238e06a71
2011-01-14 06:10:00

A new Chandra X-ray Observatory image of Messier 82, or M82, shows the result of star formation on overdrive. M82 is located about 12 million light years from Earth and is the nearest place to us where the conditions are similar to those when the Universe was much younger with lots of stars forming. M82 is a so-called starburst galaxy, where stars are forming at rates that are tens or even hundreds of times higher than in a normal galaxy. The burst of star birth may be caused by a close...

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2011-01-13 09:55:00

Using two NASA X-ray satellites, astronomers have discovered what drives the "heartbeats" seen in the light from an unusual black hole system. These results give new insight into the ways that black holes can regulate their intake and severely curtail their growth. This study examined GRS 1915+105 (GRS 1915 for short), a binary system in the Milky Way galaxy containing a black hole about 14 times more massive than the Sun that is feeding off material from a companion star. As this material...

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2011-01-12 14:24:33

The combined data from several NASA satellites has astonished astronomers by revealing unexpected changes in X-ray emission from the Crab Nebula, once thought to be the steadiest high-energy source in the sky. "For 40 years, most astronomers regarded the Crab as a standard candle," said Colleen Wilson-Hodge, an astrophysicist at NASA's Marshall Space Flight Center in Huntsville, Ala., who presented the findings today at the American Astronomical Society meeting in Seattle. "Now, for the first...

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2011-01-12 13:37:10

Astronomers have uncovered a burgeoning galactic metropolis, the most distant known in the early universe. This ancient collection of galaxies presumably grew into a modern galaxy cluster similar to the massive ones seen today. The developing cluster, named COSMOS-AzTEC3, was discovered and characterized by multi-wavelength telescopes, including NASA's Spitzer, Chandra and Hubble space telescopes, and the ground-based W.M. Keck Observatory and Japan's Subaru Telescope. "This exciting...

2011-01-12 12:00:00

WASHINGTON, Jan. 12, 2011 /PRNewswire-USNewswire/ -- Astronomers have uncovered a burgeoning galactic metropolis, the most distant known in the early universe. This ancient collection of galaxies presumably grew into a modern galaxy cluster similar to the massive ones seen today. (Logo: http://photos.prnewswire.com/prnh/20081007/38461LOGO) The developing cluster, named COSMOS-AzTEC3, was discovered and characterized by multi-wavelength telescopes, including NASA's Spitzer, Chandra and...

e73316ea1f7f6f880aa45048ed689c96
2011-01-08 11:40:00

NASA researchers will present new findings on a wide range of space science topics during the meeting of the American Astronomical Society. The meeting runs Sunday, Jan. 9, through Thursday, Jan. 13, at the Washington State Convention and Trade Center, located at 800 Convention Place in Seattle.Media briefings during the conference will discuss new results on exoplanet research, dwarf stars, gamma-ray flashes and black holes. New images will be released from missions including the Hubble...

2011-01-07 10:20:00

WASHINGTON, Jan. 7, 2011 /PRNewswire-USNewswire/ -- NASA researchers will present new findings on a wide range of space science topics during the meeting of the American Astronomical Society. The meeting runs Sunday, Jan. 9, through Thursday, Jan. 13, at the Washington State Convention and Trade Center, located at 800 Convention Place in Seattle. (Logo: http://photos.prnewswire.com/prnh/20081007/38461LOGO) Media briefings during the conference will discuss new results on exoplanet...

9c3dbd5f97b039fc95955f27cbbc6dd51
2010-12-20 14:57:21

A new study from NASA's Chandra X-ray Observatory tells scientists how often the biggest black holes have been active over the last few billion years. The object could help scientists better understand how massive stars explode, which ones leave behind black holes or neutron stars, and how many black holes are in our galaxy and others. This discovery clarifies how supermassive black holes grow and could have implications for how the giant black hole at the center of the Milky Way will behave...

b9efacc1a7b2cb585e88b297020a8a001
2010-11-15 12:30:00

NASA announced on Monday that its Chandra X-ray Observatory has discovered the youngest black hole known to exist in our cosmic neighborhood.  The 30-year-old black hole, known as Supernova 1979C (SN 1979C), is about 51 million light years from Earth and occurred in galaxy M-100.  Chandra has revealed a bright source of X-rays that has remained steady during observation from 1995 to 2007.  This data suggests that the object is a black hole being fed either by material falling...

2010-11-15 11:30:00

WASHINGTON, Nov. 15, 2010 /PRNewswire-USNewswire/ -- Astronomers using NASA's Chandra X-ray Observatory have found evidence of the youngest black hole known to exist in our cosmic neighborhood. The 30-year-old black hole provides a unique opportunity to watch this type of object develop from infancy. (Logo: http://photos.prnewswire.com/prnh/20081007/38461LOGO) (Logo: http://www.newscom.com/cgi-bin/prnh/20081007/38461LOGO) The black hole could help scientists better understand how massive...


Latest Chandra X-ray Observatory Reference Libraries

7_d6897d09acee1dd0c34d0fbf62ff7d0b2
2004-10-19 04:45:44

X-Ray Astronomy -- Although the more energetic X-rays (E > 30 keV) can penetrate the air at least for distances of a few meters (they would never have been detected and medical X-ray machines would not work if this was not the case) the Earth's atmosphere is thick enough that virtually none are able to penetrate from outer space all the way to the Earth's surface. X-rays in the 0.5 - 5 keV range, where most celestial sources give off the bulk of their energy, can be stopped by a few...

2_a81834bec3c2c5679a2f649dd032460c2
2004-10-19 04:45:40

Chandra X-ray Observatory -- NASA's Chandra X-ray Observatory, which was launched and deployed by Space Shuttle Columbia on July 23, 1999, is the most sophisticated X-ray observatory built to date. Chandra is designed to observe X-rays from high-energy regions of the universe, such as the remnants of exploded stars. The Observatory has three major parts: (1) the X-ray telescope, whose mirrors focus X-rays from celestial objects; (2) the science instruments which record the X-rays so...

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Word of the Day
endocarp
  • The hard inner (usually woody) layer of the pericarp of some fruits (as peaches or plums or cherries or olives) that contains the seed.
This word comes from the Greek 'endon,' in, within, plus the Greek 'karpos', fruit.
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