News tagged with dust particles

Related topics: comet

Samples returned from asteroid Itokawa reveal history of violent impacts

(PhysOrg.com) -- In June of 2010, Japanese researchers launched a probe called Hayabusa into space on a mission to study the asteroid Itokawa (25143). It managed to collect dust specimens from the asteroid’s ...

Space & Earth / Space Exploration

created Feb 28, 2012 | popularity 4.3 / 5 (7) | comments 8 | with audio podcast report

In the heart of Cygnus, NASA's Fermi reveals a cosmic-ray cocoon

(PhysOrg.com) -- The constellation Cygnus, now visible in the western sky as twilight deepens after sunset, hosts one of our galaxy's richest-known stellar construction zones. Astronomers viewing the region ...

Space & Earth / Astronomy

created Nov 28, 2011 | popularity 4.9 / 5 (12) | comments 5 | with audio podcast

Blocked holes can enhance rather than stop light going through

Conventional wisdom would say that blocking a hole would prevent light from going through it, but Princeton University engineers have discovered the opposite to be true. A research team has found that placing ...

Physics / Optics & Photonics

created Nov 22, 2011 | popularity 4.7 / 5 (22) | comments 25 | with audio podcast

Insoluble dust particles can form cloud droplets affecting global and regional climates

New information on the role of insoluble dust particles in forming cloud droplets could improve the accuracy of regional climate models, especially in areas of the world that have significant amounts of mineral ...

Space & Earth / Earth Sciences

created Oct 13, 2011 | popularity 5 / 5 (2) | comments 2 | with audio podcast

Meteorite holds clues to organic chemistry of the early Earth: study

(PhysOrg.com) -- Carbonaceous chondrites are a type of organic-rich meteorite that contain samples of the materials that took part in the creation of our planets nearly 4.6 billion years ago, including materials ...

Space & Earth / Space Exploration

created Jun 09, 2011 | popularity 4.7 / 5 (6) | comments 1 | with audio podcast

Oxygen isotope analysis tells of the wandering life of a dust grain 4.5 billion years ago

Scientists have performed a micro-probe analysis of the core and outer layers of a pea-sized piece of a meteorite some 4.57 billion years old to reconstruct the history of its formation, providing the first ...

Space & Earth / Astronomy

created Mar 03, 2011 | popularity 4 / 5 (6) | comments 13 | with audio podcast

Earth is getting dustier, model suggests

(PhysOrg.com) -- If the house seems dustier than it used to be, it may not be a reflection on your housekeeping skills. The amount of dust in the Earth's atmosphere has doubled over the last century, according ...

Space & Earth / Earth Sciences

created Jan 05, 2011 | popularity 4.5 / 5 (11) | comments 6 | with audio podcast

Japanese lab finds 'minute particles' in asteroid pod

Japan's space agency said Monday it has found "minute particles" of what it hopes is asteroid dust in the capsule of the space probe Hayabusa which returned to Earth last month.

Space & Earth / Space Exploration

created Jul 05, 2010 | popularity 5 / 5 (11) | comments 0

Stardust spacecraft may have found cosmic dust

(PhysOrg.com) -- The first specks of interstellar dust may have been found by NASA's Stardust spacecraft during its seven-year-long voyage. Interstellar dust is believed to form from gas ejected from stars, ...

Space & Earth / Space Exploration

created Mar 08, 2010 | popularity 4.4 / 5 (8) | comments 1 | with audio podcast report

Scientist uncovers relics of ancient cosmos

(PhysOrg.com) -- A University of Manchester scientist, working as part of an international team, has uncovered an unexpectedly rich trove of relicts from the ancient cosmos.

Space & Earth / Space Exploration

created Dec 14, 2009 | popularity 4.5 / 5 (19) | comments 3

Largest Ring Around Saturn Discovered

(PhysOrg.com) -- NASA's Spitzer Space Telescope has discovered an enormous ring around Saturn -- by far the largest of the giant planet's many rings.

Space & Earth / Astronomy

created Oct 07, 2009 | popularity 4.7 / 5 (32) | comments 12

Warped debris disks around stars are blowin' in the wind (w/ Video)

(PhysOrg.com) -- The dust-filled disks where new planets may be forming around other stars occasionally take on some difficult-to-understand shapes. Now, a team led by John Debes at NASA's Goddard Space Flight ...

Space & Earth / Astronomy

created Aug 28, 2009 | popularity 4.3 / 5 (3) | comments 1

Rethinking Brownian motion with the 'Emperor's New Clothes'

In the classic fairy tale, "The Emperor's New Clothes," Hans Christian Andersen uses the eyes of a child to challenge conventional wisdom and help others to see more clearly. In similar fashion, researchers at the University ...

Physics / Soft Matter

created Jul 27, 2009 | popularity 4.7 / 5 (19) | comments 10

Atmospheric lead causes clouds to form more easily, could change pattern of rain and snow

(PhysOrg.com) -- By sampling clouds -- and making their own -- researchers have shown for the first time a direct relation between lead in the sky and the formation of ice crystals that foster clouds. The ...

Space & Earth / Earth Sciences

created Apr 19, 2009 | popularity 4.6 / 5 (8) | comments 15

Researchers: Molecular forklifts overcome obstacle to 'smart dust'

Algae is a livid green giveaway of nutrient pollution in a lake. Scientists would love to reproduce that action in tiny particles that would turn different colors if exposed to biological weapons, food spoilage or signs of ...

Nanotechnology / Bio & Medicine

created Jan 18, 2009 | popularity 4.2 / 5 (5) | comments 3