Quantcast

Latest X-ray astronomy Stories

6ad81a43a77e330bd3547c42e0caea3f1
2010-05-25 06:35:00

This beautiful composite image shows N49, the aftermath of a supernova explosion in the Large Magellanic Cloud. A new long observation from NASA's Chandra X-ray Observatory, shown in blue, reveals evidence for a bullet-shaped object being blown out of debris field left over from an exploded star. In order to detect this bullet, a team of researchers led by Sangwook Park of Penn State University used Chandra to observe N49 for over 30 hours. This bullet can be seen in the bottom right hand...

e403e3516a8579c6377682457e91f86e1
2010-05-11 13:37:18

Using observations with NASA's Chandra X-ray Observatory and ESA's XMM-Newton, astronomers have announced a robust detection of a vast reservoir of intergalactic gas about 400 million light years from Earth. This discovery is the strongest evidence yet that the "missing matter" in the nearby Universe is located in an enormous web of hot, diffuse gas. This missing matter "” which is different from dark matter -- is composed of baryons, the particles, such as protons and electrons, that...

b2daa27a6d9e7fd1c71aeb1a519b1f831
2010-05-11 08:20:01

Undergraduate student Marianne Heida of the University of Utrecht has found what appears to be a supermassive black hole leaving its home galaxy at high speed. As part of an international team of astronomers, this extraordinary discovery appears in a paper in the journal Monthly Notices of the Royal Astronomical Society. For her final year project, Marianne worked at the SRON Netherlands Institute for Space Research, used the Chandra Source Catalog (made using the orbiting Chandra X-ray...

f600de53c4a43aa7d63924da25e2121a1
2010-04-28 11:15:00

One of the teams behind ESA's XMM-Newton X-ray mission has unveiled the latest edition of their 2XMM catalogue. The newest incarnation boasts an additional 42,000 entries, ratcheting up the total to over a quarter of a million X-ray sources. This unprecedented cosmic X-ray library is a valuable resource allowing astronomers to explore the extreme Universe. This latest edition of the 2XMM catalogue, an unrivalled storehouse of information on X-ray sources, is the largest ever assembled. It is...

2010-04-22 08:00:00

PALO ALTO, Calif., April 22 /PRNewswire/ -- Spectacular "first light" images and data from the three state-of-the art instruments on NASA's Solar Dynamics Observatory (SDO) were unveiled yesterday morning by NASA. The SDO spacecraft was launched aboard a United Launch Alliance Atlas V rocket from the Cape Canaveral Air Force Station on February 11, 2010. (Photo: http://www.newscom.com/cgi-bin/prnh/20100422/SF91131) Two of the SDO instruments were built at the Solar and Astrophysics...

f210883a188fb45575f9884974b291e21
2010-04-14 12:20:00

Two new and independent studies have put Einstein's General Theory of Relativity to the test like never before. These results, made using NASA's Chandra X-ray Observatory, show Einstein's theory is still the best game in town. Each team of scientists took advantage of extensive Chandra observations of galaxy clusters, the largest objects in the Universe bound together by gravity. One result undercuts a rival gravity model to General Relativity, while the other shows that Einstein's theory...

97ca0a95edbf2e61224fccf0b2bd94691
2010-04-14 08:28:59

Radio astronomers at the University of Manchester's Jodrell Bank Observatory have discovered a strange new object in a nearby galaxy. The object, which appeared very suddenly in radio wavelengths and shows no signs of going away, does not appear to be like anything that has been seen in the Milky Way.  Dr Tom Muxlow will present the discovery at the National Astronomy Meeting in Glasgow on Wednesday April 14th. The galaxy, known as M82, is 10 million light years away and is a stellar...

d7b636a460f8b302ae29f43a0c182f7b1
2010-03-24 08:00:00

Our world is full of integrated semiconductor circuits, commonly known as microchips. Today you find them in computers, cars, mobile phones and in almost every electrical device. Technology from ESA's XMM-Newton space telescope will make these chips much smaller, faster and cheaper. The circuits are etched into today's microchips by ultraviolet light. The demand for faster and more powerful chips requires the use of extreme ultraviolet (EUV). Much smaller semiconductor circuits can be...

9941fceae8bd98ddda3ca08a0fefb935
2010-03-02 07:50:00

The Solar X-ray Imager (SXI) instrument, designed and built by Lockheed Martin at its Space Systems Advanced Technology Center (ATC) is ready for flight. Built for the NASA Goddard Space Flight Center (GSFC) in Greenbelt, Md., SXI is awaiting launch "“ scheduled for March 4 "“ on the National Oceanic and Atmospheric Administration (NOAA) GOES-P spacecraft from Cape Canaveral Air Force Station, Fla. SXI is one of a suite of instruments that resides on the current generation of...

2010-03-01 10:07:00

PALO ALTO, Calif., March 1 /PRNewswire/ -- The Solar X-ray Imager (SXI) instrument, designed and built by Lockheed Martin (NYSE: LMT) at its Space Systems Advanced Technology Center (ATC) is ready for flight. Built for the NASA Goddard Space Flight Center (GSFC) in Greenbelt, Md., SXI is awaiting launch - scheduled for March 2 - on the National Oceanic and Atmospheric Administration (NOAA) GOES-P spacecraft from Cape Canaveral Air Force Station, Fla. SXI is one of a suite of instruments...


Latest X-ray astronomy Reference Libraries

sts-35
2012-03-24 09:55:41

Columbia launched from Kennedy Space Center on December 2, 1990 at 1:49 AM EST and landed at Edwards AFB on December 10 at 9:54 PM PST. The shuttle orbited 144 times at an altitude of 190 nautical miles at an inclination of 28.45 degrees and travelled 3.7 million miles. The mission lasted 8 days, 23 hours, 5 minutes, and 8 seconds. The primary objectives were round-the-clock observations of the celestial sphere in ultraviolet and x-ray astronomy with the ASTRO-1 observatory consisting of...

45_b90d45a4e7d89d873d39705549e516ce
2014-01-12 00:00:00

Sample Entry: Astronomy is the scientific study of stars, planets, comets, galaxies, and other phenomena that occur outside Earth's atmosphere (e.g. cosmic radiation). Astronomy deals with the evolution, physics, chemical makeup, meteorology, and motion of celestial objects, and also the formation of the universe. The word Astronomy comes from the Greek words astron (meaning "star") and nomos (meaning "law"). Astronomy is one of the oldest sciences. Since the dawn of man, people always...

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...

6_f90ed86f2fe38a60d6f89c02ad7d21082
2004-10-19 04:45:43

X-ray Pulsar -- This dramatic artist's vision shows a city-sized neutron star centered in a disk of hot plasma drawn from its enfeebled red companion star. Ravenously accreting material from the disk, the neutron star spins faster and faster emitting powerful particle beams and pulses of X-rays as it rotates 400 times a second. Could such a bizarre and inhospitable star system really exist in our Universe? Based on data from the orbiting Rossi X-Ray Timing Explorer (RXTE) satellite,...

6_f5324ad7d5514381282c99963af8be7c2
2004-10-19 04:45:41

Gamma-Ray Burst -- In astronomy, Gamma-ray bursters (GRBs) are flashes of gamma rays that last from seconds to hours, the longer ones being followed by several days of X-ray afterglow. They occur at random positions in the sky several times each day. They are now believed to result from tremendous explosions in far away galaxies, during the creation of a black hole from a dying star or two colliding neutron stars. The black hole, surrounded by a rotating disk of matter falling into it,...

More Articles (8 articles) »
Word of the Day
mallemaroking
  • Nautical, the visiting and carousing of sailors in the Greenland ships.
This word is apparently from a confusion of two similar Dutch words: 'mallemerok,' a foolish woman, and 'mallemok,' a name for some persons among the crew of a whaling vessel.