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Latest Chandra X-ray Observatory Stories

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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.

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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.

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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.

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.

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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.

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.

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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.

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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.

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.

2010-11-11 06:37:20

NASA will hold a news conference at 12:30 pm EST on Monday, Nov 15, to discuss the Chandra X-ray Observatory's discovery of an exceptional object in our cosmic neighborhood.


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
swell-mobsman
  • A member of the swell-mob; a genteelly clad pickpocket. Sometimes mobsman.
Use of the word 'swell-mobsman' dates at least to the early 1800s.