Latest Cosmic dust Stories

2009-09-02 13:26:16

Interstellar clouds, drifting through the unimaginable vastness of space, may be the stuff dreams are made of. But it turns out there's an unexpectedly strange component in those clouds, and it's not dreams but "” mothballs? Well, not exactly, but researchers from the University of Georgia have just shown for the first time that one component of clouds emitting unusual infrared light know as the Unidentified Infrared Bands (UIRs) is a gaseous version of naphthalene, the chief component...

2009-08-26 07:20:00

Today ESO has released a new image of the Trifid Nebula, showing just why it is a firm favorite of astronomers, amateur and professional alike. This massive star factory is so named for the dark dust bands that trisect its glowing heart, and is a rare combination of three nebula types, revealing the fury of freshly formed stars and presaging more star birth. Smoldering several thousand light-years away in the constellation of Sagittarius (the Archer), the Trifid Nebula presents a compelling...

2009-06-10 13:40:25

Astronomers using the infrared capability of the U.S. space agency's Spitzer Space Telescope have found two newborn stars at the center of our galaxy. The heart of the Milky Way spiral galaxy is cluttered with stars, dust and gas, and at its center, a supermassive black hole, National Aeronautics and Space Administration scientists said. Conditions there are harsh, but astronomers have known stars can form in such chaotic space, however, until now nobody had been able to definitively locate...

2009-04-23 10:58:29

U.S. astronomers say they've used a mathematical model to obtain a clearer picture of the galaxy's youngest supernova remnant. Researchers at North Carolina State University said the model corrects for the distortions caused by cosmic dust, thereby providing evidence that the remnant is from a type Ia supernova and raising questions about the ways in which magnetic fields affect the generation of the remnant's cosmic ray particles. Physicists Stephen Reynolds and Kazimierz Borkowski -- with...

2009-04-23 09:45:00

Researchers at North Carolina State University have used a mathematical model that allows them to get a clearer picture of the galaxy's youngest supernova remnant by correcting for the distortions caused by cosmic dust. Their new data provides evidence that this remnant is from a type Ia supernova - the explosion of a white dwarf star - and raises questions about the ways in which magnetic fields affect the generation of the remnant's cosmic ray particles. NC State physicists Dr. Stephen...

2009-04-21 08:23:54

An international team of scientists has found some of the most primitive matter containing abundant interstellar material analyzed to date amongst dust particles collected from the upper atmosphere by NASA aircraft. The samples were gathered in April 2003 during the Earth's passage through the dust stream left behind by comet 26P/Grigg-Skjellerup. Dr Henner Busemann of the University of Manchester will present the results at the European Week of Astronomy and Space Science at the University...

2009-03-31 09:36:58

Astronomy & Astrophysics is publishing the first clear detection of signatures long sought in the spectra of X-ray astronomical sources, the so-called EXAFS signatures, standing for "Extended X-ray Absorption Fine Structure". EXAFS is a powerful tool for studying the structure of grains in the interstellar medium (ISM). It gives a more detailed picture of the composition and structure of amorphous grains in the ISM. Astronomy & Astrophysics is publishing the first clear detection of...

2009-02-26 10:49:57

The vast expanses of intergalactic space appear to be filled with a haze of tiny, smoke-like "dust" particles that dim the light from distant objects and subtly change their colors, according to a team of astronomers from the Sloan Digital Sky Survey (SDSS-II). "Galaxies contain lots of dust, most of it formed in the outer regions of dying stars," said team leader Brice M©nard of the Canadian Institute for Theoretical Astrophysics. "The surprise is that we are seeing dust hundreds of...

2009-02-24 09:55:00

A team of astronomers, led by Loretta Dunne from the University of Nottingham, have found some very unusual stardust. In a paper to be published in Monthly Notices of the Royal Astronomical Society, Dr Dunne and her team find new evidence for the production of copious quantities of dust in the Cassiopeia A supernova remnant, the remains of a star that exploded about 300 years ago. Interstellar dust is found throughout the cosmos. It is responsible for the dark patches seen in the Milky Way on...

2009-01-19 15:02:41

British astronomers say cosmic dust was partially created by the gradual death of carbon stars and not just from stars that exploded. The astronomers have been watching cosmic dust form around a dying star in a nearby galaxy, similar to the primitive galaxies that formed soon after the big bang, said a release from the Science and Technology Facilities Council, which funded the study. The newly observed dust formation was found around the carbon star MAG 29, located 280,000 light years away...

Latest Cosmic dust Reference Libraries

2004-10-19 04:45:42

Nebula -- in astronomy, observed manifestation of a collection of highly rarefied gas and dust in interstellar space. Prior to the 1960s this term was also applied to bodies later discovered to be galaxies, e.g., the so-called Great Nebula in the constellation Andromeda. In 1864, William Huggins confirmed William Herschel's conclusion that nebulae are not swarms of stars by determining that the spectra of nebulae are made of bright lines characteristic of radiating gases. Diffuse...

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Word of the Day
  • A fool; a simpleton: a term of abuse common in Ireland and to a less extent in the Gaelic-speaking parts of Scotland.
This word is partly Irish in origin.