Dust
hideDust is a general name for minute solid particles with diameters less than 20 thou (500 micrometers). Particles in the atmosphere arise from various sources such as soil dust lifted up by wind, volcanic eruptions, and pollution. Dust in homes, offices, and other human environments consist primarily of human skin cells, but also contain small amounts of plant pollen, human and animal hairs, textile fibers, paper fibers, minerals from outdoor soil, and many other materials which may be found in the local environment.
For more information about Dust, read the full article at
Wikipedia.
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News tagged with dust
Spitzer Unveils Biggest Milky Way View at Adler Planetarium
Space & Earth / Space Exploration
Dec 04, 2009 |
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(PhysOrg.com) -- The world's largest image of our Milky Way galaxy, taken by NASA's Spitzer Space Telescope, went on display this week at the Adler Planetarium in Chicago.
Spirit Rover: Rear Wheel Trouble Continues
Space & Earth / Space Exploration
1hour ago |
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(PhysOrg.com) -- Results of diagnostic tests on Spirit's right-rear wheel on Sol 2109 (Dec. 8, 2009) continue to indicate a troubled wheel, which may leave the rover with only four operable wheels.
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Studying a Star Before it is Born
Dec 04, 2009 |
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(PhysOrg.com) -- The first phase of a star's formation are thought to begin deep inside a natal cloud of gas and dust. In the earliest stages, material coalesces under the influence of gravity into so-called ...
RIT astronomer mines Spitzer Space Telescope data for massive starbursts
Dec 08, 2009 |
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Understanding the evolution of galaxies is one of the biggest questions confronting astronomers today. Looking at distant astronomical objects gives scientists important clues to the origins of the Milky Way Galaxy and other ...
Galaxy Collision Switches on Black Hole
3 hours ago |
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(PhysOrg.com) -- This composite image of data from three different telescopes shows an ongoing collision between two galaxies, NGC 6872 and IC 4970.
Cassini closes in on the centuries-old mystery of Saturn's moon Iapetus
Space & Earth / Space Exploration
5 hours ago |
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Extensive analyses and modeling of Cassini imaging and heat-mapping data have confirmed and extended previous ideas that migrating ice, triggered by infalling reddish dust that darkens and warms the surface, ...
A (nano-) window that washes itself?
Nanotechnology / Nanomaterials
Dec 03, 2009 |
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A coating on windows or solar panels that repels grime and dirt? Expanded battery storage capacities for the next electric car? New Tel Aviv University research, just published in Nature Nanotechnology, detail ...
Stellar family portrait takes imaging technique to new extremes
Dec 03, 2009 |
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Noted for harbouring Eta Carinae -- one of the wildest and most massive stars in our galaxy -- the impressive Carina Nebula also houses a handful of massive clusters of young stars. The youngest of these stellar ...
Scientists observe super-massive black holes using Keck Observatory in Hawaii
56 minutes ago |
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An international team of scientists has observed four super-massive black holes at the center of galaxies, which may provide new information on how these central black hole systems operate. Their findings ...
NASA's WISE infrared satellite to reveal new galaxies, stars, asteroids
Dec 04, 2009 |
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(PhysOrg.com) -- Data from the satellite, says principal investigator and UCLA professor Edward Wright, will help scientists answer fundamental questions about the history of our solar system, the Milky Way ...
Best (Meteor) Shower of 2009 - No Towel Required
Space & Earth / Space Exploration
11 hours ago |
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(PhysOrg.com) -- Bundle up and get ready to watch a fiery lightshow stirred up by dead comets in Earth's upper atmosphere during the cold of winter in the dead of night. The annual Geminid meteor shower is ...
NASA to launch sky-mapping spacecraft
Dec 06, 2009 |
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(AP) -- NASA's latest space telescope will scan the sky in search of never-before-seen asteroids, comets, stars and galaxies, with one of its main tasks to catalog objects posing a danger to Earth. The sky-mapping ...
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