Quantcast

Latest Leon Van Speybroeck Stories

ff1110823010d1ca0dafb4c6c6836993
2011-07-27 09:40:00

The flow of hot gas toward a black hole has been clearly imaged for the first time in X-rays.

b5dea1ab599eaf9727258b77c8ce04d4
2010-02-04 16:10:00

Astronomers have found the first clear evidence of a binary quasar within a pair of actively merging galaxies.

b7e41d07ac958366f94fce27ef32a3081
2009-07-23 09:10:00

Ten years ago, on July 23, 1999, NASA's Chandra X-ray Observatory was launched aboard the space shuttle Columbia and deployed into orbit.

2009-07-23 08:07:00

WASHINGTON, July 23 /PRNewswire-USNewswire/ -- Ten years ago, on July 23, 1999, NASA's Chandra X-ray Observatory was launched aboard the space shuttle Columbia and deployed into orbit.

bf3e25c95a3b51a47b554895e18745351
2007-03-29 14:49:18

X-ray data from NASA's Chandra X-ray Observatory and radio observations from the NSF's Very Large Array show that the hot gas (blue) in the middle of 3C442A is pushing apart the radio-bright gas (orange).

4f9d61d0961c6b54b67f625e5af170121
2006-08-08 16:38:26

A critically important number that specifies the expansion rate of the Universe, the so-called Hubble constant, has been independently determined using NASA's Chandra X-ray Observatory.

6338074390574d9de9199c12b88e3dbd1
2006-01-03 17:33:30

In an unusual observation, a team of scientists has scanned the northern polar region of Earth with NASA's Chandra X-ray Observatory. The results show that the aurora borealis, or "northern lights," also dance in X-ray light, creating changing bright arcs of X-ray energy above the Earth's surface.

09550c1f3f9ccad706aa0084e37ac1fd1
2005-05-24 07:22:54

Using Chandra spectra obtained from more than 300 supermassive black holes in the centers of galaxies, a team of astronomers has been able to determine the amount of iron near the black holes (light blue in illustration on the right).


Latest Leon Van Speybroeck Reference Libraries

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...

More Articles (1 articles) »
Word of the Day
plim
  • To swell, as grain or wood with water.
The word 'plim' is probably a variant of the word 'plum'.
Related