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Latest Cosmic dust Stories

9cce09ad508f4cb1d244e7a1fbaae3151
2005-12-06 07:10:00

NASA -- Stardust's voyage in space is near its end, but its cargo - the world's first cometary and interstellar dust samples - has begun its two year journey on Earth, which ends on a cold early morning on the floor of a frozen dry lakebed. After successfully collecting particles of Comet Wild 2 on Jan. 2, 2004, Stardust's Sample Return Capsule reenters Earth's atmosphere and parachutes through the darkened sky on Jan. 15, 2006. The capsule touches down at approximately 3:15 a.m. (local...

2005-10-25 19:30:00

Thus, the process of building planets is more universal and robust than had previously been assumed (Science Express, October 20, 2005). Brown dwarfs, like more massive normal stars, are formed when interstellar gas and dust clouds collapse. When this happens, a central, dense area builds up, embedded in a rotating disc made of gas and dust. These circumstellar discs produce infrared radiation according to their temperature. The collapse of gas and dust clouds ends when the increasing...

58b101b75b05fde4733cb2476b0697ae
2005-07-04 02:35:00

PASADENA, Calif. -- It sounded like science fiction - NASA scientists used a space probe to chase down a speeding comet 83 million miles away and slammed it into the frozen ball of dirty ice and debris in a mission to learn how the solar system was formed. The unmanned probe of the Deep Impact mission collided with Tempel 1, a pickle-shaped comet half the size of Manhattan, late Sunday as thousands of people across the country fixed their eyes to the southwestern sky for a glimpse. The...

a308b60f3e0a47c5700f0998cf1e21b6
2005-07-01 07:00:00

NASA and University of Arizona researchers have discovered pristine mineral grains that formed in an ancient supernova explosion. The grains were among other extraterrestrial dust plucked by high-flying NASA research aircraft from Earth's upper atmosphere after they were delivered to Earth by a comet or primitive asteroid. It is the first time anyone has ever discovered silicate grains, in this case olivine, from a supernova. They reveal important new information on how much material...

bfaf6e70ca8be3c444b224f8433387231
2005-06-24 14:32:52

COLUMBUS , Ohio -- Science fiction writer Harlan Ellison once said that the most common elements in the universe are hydrogen and stupidity. While the verdict is still out on the volume of stupidity, scientists have long known that hydrogen is indeed by far the most abundant element in the universe. When they peer through their telescopes, they see hydrogen in the vast clouds of dust and gas between stars -- especially in the denser regions that are collapsing to form new stars and planets....

2005-06-06 23:20:36

ITHACA, N.Y. - The office that astronomer Lei Hao shares with her fellow research associates on the first floor of the Space Sciences Building at Cornell University is tidy and organized. But Hao has been thinking a lot lately about dust. Actually, she's recently found a great deal of it. And she's thrilled. The dust in question is between 0.88 billion and 2.4 billion light years away from Hao's office, in galaxies scientists classify as active galactic nuclei (AGNs). By confirming that the...

9e860a7f9a8135b623d5afd1b99628ab
2005-06-06 17:17:55

ITHACA, N.Y. -- The office that astronomer Lei Hao shares with her fellow research associates on the first floor of the Space Sciences Building at Cornell University is tidy and organized. But Hao has been thinking a lot lately about dust. Actually, she's recently found a great deal of it. And she's thrilled. The dust in question is between 0.88 billion and 2.4 billion light years away from Hao's office, in galaxies scientists classify as active galactic nuclei (AGNs). By confirming that...

57c8b7f1e0eb36b983d8914ac842d2641
2005-03-04 08:00:00

NASA -- Eons ago, giant clouds in space may have led to global extinctions, according to two recent technical papers supported by NASA's Astrobiology Institute. One paper outlines a rare scenario in which Earth iced over during snowball glaciations, after the solar system passed through dense space clouds. In a more likely scenario, less dense giant molecular clouds may have enabled charged particles to enter Earth's atmosphere, leading to destruction of much of the planet's protective ozone...

d6eebe8e5e59f66ef1b88ff7c734e522
2005-03-01 13:20:00

JPL -- How do you hide something as big and bright as a galaxy? You smother it in cosmic dust. NASA's Spitzer Space Telescope saw through such dust to uncover a hidden population of monstrously bright galaxies approximately 11 billion light-years away. These strange galaxies are among the most luminous in the universe, shining with the equivalent light of 10 trillion suns. But, they are so far away and so drenched in dust, it took Spitzer's highly sensitive infrared eyes to find them. "We...

969aed7e5512aeaedb4a852c6e539e901
2005-01-23 12:35:00

Boulder -- New results from the Cassini mission indicate the spacecraft was pelted with sporadic bursts of interplanetary dust as it approached Saturn last year, according to a University of Colorado at Boulder space scientist. Mihaly Horanyi of CU-Boulder's Laboratory for Atmospheric and Space Physics said the dust particle bursts grew more frequent and intense as the Cassini spacecraft closed in on the planet from 40 million miles away in early 2004. Horanyi, also a CU-Boulder physics...


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...

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