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Latest Molecular cloud Stories

978c1798767dcd74b2f12029241c27c3
2009-10-02 07:35:00

Herschel has delivered spectacular vistas of cold gas clouds lying near the plane of the Milky Way, revealing intense, unexpected activity. The dark, cool region is dotted with stellar factories, like pearls on a cosmic string. On 3 September, Herschel aimed its telescope at a reservoir of cold gas in the constellation of the Southern Cross near the Galactic Plane. As the telescope scanned the sky, the spacecraft's Spectral and Photometric Imaging REceiver, SPIRE, and Photoconductor Array...

0d3cb20a730c600b66e0aac94b52e7501
2009-09-09 15:30:00

The simple picture of star formation calls for giant clouds of gas and dust to collapse inward due to gravity, growing denser and hotter until igniting nuclear fusion. In reality, forces other than gravity also influence the birth of stars. New research shows that cosmic magnetic fields play a more important role in star formation than previously thought. A molecular cloud is a cloud of gas that acts as a stellar nursery. When a molecular cloud collapses, only a small fraction of the cloud's...

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2009-08-12 14:15:00

This composite image, combining data from the Chandra X-ray Observatory and the Spitzer Space Telescope shows the molecular cloud Cepheus B, located in our Galaxy about 2,400 light years from the Earth. A molecular cloud is a region containing cool interstellar gas and dust left over from the formation of the galaxy and mostly contains molecular hydrogen. The Spitzer data, in red, green and blue shows the molecular cloud (in the bottom part of the image) plus young stars in and around Cepheus...

e28e88d5cecf65725797990aee90d9e51
2008-12-31 15:10:00

New computer visualization technology developed by the Harvard Initiative in Innovative Computing has helped astrophysicists understand that gravity plays a larger role than previously thought in deep space's vast, star-forming molecular clouds. The insight, to be reported in the Jan. 1 issue of the journal Nature, is being illustrated in the journal's online version through new three-dimensional Portable Document Format (PDF) technology that will allow readers to view the article's key...

1eb02933de4ac4d7e2682b795abcc0ba
2008-03-07 12:05:00

Mapping the interior of interstellar clouds in great detailAstronomers have measured the distribution of mass inside a dark filament in a molecular cloud with an amazing level of detail and to great depth. The measurement is based on a new method that looks at the scattered near-infrared light or 'cloudshine' and was made with ESO's New Technology Telescope. Associated with the forthcoming VISTA telescope, this new technique will allow astronomers to better understand the cradles of newborn...

2006-08-08 15:00:32

GREEN BANK, W.Va. (AP) - Eight new complex, carbon-containing molecules have been found in two interstellar clouds by an international research team using the Robert C. Byrd Green Bank Telescope. The team detected acetamide, cyclopropenone, propenal, propanal and ketenimine in Sagittarius B2 (N), while methyl-cyano-diacetylene, methyl-triacetylene and cyanoallene were found in the Taurus Molecular Cloud (TMC-1), the National Radio Astronomy Observatory announced Monday. Sagittarius B2 (N)...

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2006-04-04 19:10:00

Astronomers based at Jodrell Bank Observatory have discovered a giant bridge of methyl alcohol, spanning approximately 288 billion miles, wrapped around a stellar nursery.  The gas cloud could help our understanding of how the most massive stars in our galaxy are formed. The new observations were taken with the UK's MERLIN radio telescopes, which have recently been upgraded.  The team studied an area called W3(OH), a region in our galaxy where stars are being formed by the...

e0e0ff05dd6cd51a956a162d812b35201
2006-01-13 07:39:49

Berkeley -- Astronomers announced Thursday what may be the first discovery of a helical magnetic field in interstellar space, coiled like a snake around a gas cloud in the constellation of Orion. "You can think of this structure as a giant, magnetic Slinky wrapped around a long, finger-like interstellar cloud,'' said Timothy Robishaw, a graduate student in astronomy at the University of California, Berkeley. "The magnetic field lines are like stretched rubber bands; the tension squeezes the...


Latest Molecular cloud Reference Libraries

6_eb1c58e78fe764237148429a189b17e92
2004-10-19 04:45:42

Star Formation -- Star formation is the process by which gas in molecular clouds gets transformed into stars. In the current paradigm of star formation, cores of molecular clouds (regions of specially high density) became gravitationally unstable, and start to concentrate. Part of the gravitational energy lost in the process is radiated in the infrared, another part increases the temperature of the core. The accretion of material happen partially though a circumstellar disc. When...

6_53083d96ff77dbf99c47ef10b6a209332
2004-10-19 04:45:41

Molecular Cloud -- Molecular clouds are interstellar nebulae that have a density and size sufficient to permit the formation of H2, molecular hydrogen. However, this molecule is difficult to detect, and the molecule most used to trace the H2 is CO (carbon monoxide). The ratio between CO luminosity and H2 mass is roughly constant, although there are reasons to doubt this assumption in observations of some other galaxies. In the Milky Way, molecular clouds account for roughly one-half...

6_465ffbdda99223eeee479def3ec0523d2
2004-10-19 04:45:41

Interstellar Cloud -- Interstellar cloud is the generic name given to accumulations of gas and dust in our galaxy. Depending on the density, size and temperature of a given cloud, the hydrogen in it can be neutral (HI clouds) or molecular (molecular clouds). Chemical compositions Analysing the composition of interstellar clouds is achieved by studying electromagnetic radiation that we receive from them. Large radio telescopes scan the intensity in the sky of particular frequencies of...

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Word of the Day
barghest
  • A goblin in English folklore, often appearing in the shape of a large dog and believed to portend imminent death or misfortune.
  • A ghost, wraith, hobgoblin, elf, or spirit.
The origin of 'barghest' is not known, but it may be from perhaps burh-ghest, town-ghost, or German Berg-geist (mountain spirit) or Bär-geist (bear-spirit).
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