Quantcast

Latest Cosmic dust Stories

595c8cc8517c8721459c507c9e5880be1
2008-10-10 15:22:45

Supercomputer simulations of dusty disks around sunlike stars show that planets nearly as small as Mars can create patterns that future telescopes may be able to detect. The research points to a new avenue in the search for habitable planets. "It may be a while before we can directly image earthlike planets around other stars but, before then, we'll be able to detect the ornate and beautiful rings they carve in interplanetary dust," says Christopher Stark, the study's lead researcher at the...

3cdd3696c1bf467e1e4de998b5586749
2008-10-02 00:25:00

Hot spots near the shattered remains of an exploded star are echoing the blast's first moments, say scientists using data from NASA's Spitzer Space Telescope. Eli Dwek of NASA's Goddard Space Flight Center in Greenbelt, Md. and Richard Arendt of the University of Maryland, Baltimore County, say these echoes are powered by radiation from Cassiopeia A supernova shock wave that blew the star apart some 11,000 years ago. "We're seeing the supernova's first flash," Dwek said. Previously, other...

94c42dd2728643b3f636bf27ed4ea269
2008-09-03 09:05:00

The origin of the microscopic meteorites that make up cosmic dust has been revealed for the first time in new research out Sept. 1, 2008. The research, published in the journal Geology, shows that some of the cosmic dust falling to Earth comes from an ancient asteroid belt between Jupiter and Mars. This research improves our knowledge of the solar system, and could provide a new and inexpensive method for understanding space. Cosmic dust particles, originally from asteroids and comets, are...

8013e0a22d66d2f284bae49cd835809e1
2008-07-21 19:40:00

The Pinwheel galaxy is gussied up in infrared light in a new picture from NASA's Spitzer Space Telescope. The fluffy-looking galaxy, officially named Messier 101, is dominated by a mishmash of spiral arms. In Spitzer's new view, in which infrared light is color coded, the galaxy sports a swirling blue center and a unique, coral-red outer ring. A new paper appearing July 20 in the Astrophysical Journal explains why this outer ring stands out. According to the authors, the red color highlights...

9e75ab6276ddbf31ec5561726d6aab7e
2008-06-12 15:35:36

NASA researchers and scientists from the United States, Germany and Japan have found a new mineral in material that likely came from a comet.The mineral, a manganese silicide named Brownleeite, was discovered within an interplanetary dust particle, or IDP, that appears to have originated from comet 26P/Grigg-Skjellerup. The comet originally was discovered in 1902 and reappears every 5 years. The team that made the discovery is headed by Keiko Nakamura-Messenger, a space scientist at NASA's...

2eb485b7ec754576baf6563422d9e5d71
2008-02-14 16:05:00

Astronomers have discovered that rocky, terrestrial planets might orbit many, if not most, of the nearby sun-like stars in the disk of our galaxy. These new results suggest that worlds with potential for life are more common that we thought. This release is being issued jointly with the University of Arizona (UA). UA astronomer Michael Meyer (currently on sabbatical at the Harvard-Smithsonian Center for Astrophysics) used NASA's Spitzer Space Telescope to determine whether planetary...

2cfea9af957cdc209919d03d19969f74
2008-02-01 11:00:00

University of Nottingham astronomers will be studying icy cosmic dust millions of light years away "” using the biggest space telescope ever built. Experts in the School of Physics and Astronomy will be using the Herschel Space Observatory, the most powerful telescope ever launched into space, as part of a giant survey to find out more about some of the coldest objects in the Universe. The Herschel Space Observatory, launched by the European Space Agency this Summer, promises to take...

3f2ffe2f4977eeed668280c99add33aa1
2008-01-24 15:15:00

Contrary to expectations for a small icy body, much of the comet dust returned by the Stardust mission formed very close to the young sun and was altered from the solar system's early materials. When the Stardust mission returned to Earth with samples from the comet Wild 2 in 2006, scientists knew the material would provide new clues about the formation of our solar system, but they didn't know exactly how. New research by scientists at Lawrence Livermore National Laboratory and collaborators...

57abeaa2b517264cd6e827dec79db18e1
2007-12-20 16:15:00

Astronomers have at last found definitive evidence that the universe's first dust "“ the celestial stuff that seeded future generations of stars and planets "“ was forged in the explosions of massive stars. The findings, made with NASA's Spitzer Space Telescope, are the most significant clue yet in the longstanding mystery of where the dust in our very young universe came from. Scientists had suspected that exploding stars, or supernovae, were the primary source, but nobody had...

2007-12-19 18:53:48

UC Davis researchers have dated the earliest step in the formation of the solar system -- when microscopic interstellar dust coalesced into mountain-sized chunks of rock -- to 4,568 million years ago, within a range of about 2,080,000 years. UC Davis postdoctoral researcher Frederic Moynier, Qing-zhu Yin, assistant professor of geology, and graduate student Benjamin Jacobsen established the dates by analyzing a particular type of meteorite, called a carbonaceous chondrite, which represents...


Latest Cosmic dust Reference Libraries

6_56b4148a38a885ae7fa748b6f76fe6032
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...

More Articles (1 articles) »
Word of the Day
toccata
  • In music, a work for a keyboard-instrument, like the pianoforte or organ, originally intended to utilize and display varieties of touch: but the term has been extended so as to include many irregular works, similar to the prelude, the fantasia, and the improvisation.
This word is Italian in origin, coming from the feminine past participle of 'toccare,' to touch.
Related