News tagged with dust formation


It's a grind to make Mars red

It's a grind to make Mars red

Space & Earth / Space Exploration

created Sep 18, 2009 | popularity 4.6 / 5 (5) | comments 2

(PhysOrg.com) -- The widespread idea that Mars is red due to rocks being rusted by the water that once flooded the red planet may be wrong. Recent laboratory studies show that the red dust may be formed by ...


Watching a 'New Star' Make the Universe Dusty

Space & Earth / Astronomy

created Jul 24, 2008 | popularity 4.5 / 5 (4) | comments 0

(PhysOrg.com) -- Using ESO's Very Large Telescope Interferometer, and its remarkable acuity, astronomers were able for the first time to witness the appearance of a shell of dusty gas around a star that had just erupted, ...





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Planet formation could lie in stellar storms rather than gravitational instability

Space & Earth / Astronomy

created Dec 12, 2008 | popularity 4.5 / 5 (17) | comments 5

New research suggests that turbulence plays a critical role in creating ripe conditions for the birth of planets. The study, to be published in The Astrophysical Journal, challenges the prevailing theory of planet format ...


Massive dust storm in China circled the world in 13 days: study

Space & Earth / Earth Sciences

created Jul 20, 2009 | popularity 4.5 / 5 (4) | comments 1

A wind storm that ripped across western China's Taklimakan desert kicked up hundreds of thousands of tonnes of dust that high-altitude winds then carried around the world in less than two weeks, a study says.


Massive Stars Near the Galactic Center

Massive Stars Near the Galactic Center

Space & Earth / Astronomy

created Aug 28, 2009 | popularity 4.3 / 5 (14) | comments 7

The Central Molecular Zone (CMZ) of our galaxy is a giant complex of molecular gas and dust situated in the innermost 700 light-years of the Milky Way. Although the galaxy is over 100,000 light-years in size, ...


African dust forecast may help hurricane season predictions

African dust forecast may help hurricane season predictions

Space & Earth / Earth Sciences

created May 20, 2008 | popularity 4.5 / 5 (11) | comments 0

As the official June 1 start of the Atlantic hurricane season approaches, forecasters are developing predictions about the severity of this year's season. For the first time this year, African dust may provide ...


Verdict: Supermassive black holes not guilty of shutting down star formation

Verdict: Supermassive black holes not guilty of shutting down star formation

Space & Earth / Astronomy

created Jan 22, 2009 | popularity 4.6 / 5 (9) | comments 9

(PhysOrg.com) -- A team of Yale University astronomers has discovered that galaxies stop forming stars long before their central supermassive black holes reach their most powerful stage, meaning the black ...


The Energy Sources of Ultraluminous Galaxies

The Energy Sources of Ultraluminous Galaxies

Space & Earth / Astronomy

created Nov 27, 2009 | popularity 4.7 / 5 (20) | comments 3

(PhysOrg.com) -- Ultraluminous infrared galaxies ((ULIRGs) are galaxies whose luminosity exceeds that of a trillion suns; for comparison, the Milky Way galaxy has a typical (and much more modest) luminosity ...


Artist concept of Stardust.

'Ultra-primitive' particles found in comet dust

Space & Earth / Space Exploration

created Nov 02, 2009 | popularity 4.9 / 5 (9) | comments 2

Dust samples collected by high-flying aircraft in the upper atmosphere have yielded an unexpectedly rich trove of relicts from the ancient cosmos, report scientists from the Carnegie Institution. The stratospheric ...


Milky Way's infrared portrait gives new view of galaxy

Milky Way's infrared portrait gives new view of galaxy

Space & Earth / Astronomy

created Jun 03, 2008 | popularity 4.8 / 5 (25) | comments 1

Humans have always had a ringside seat for viewing the Milky Way. Now, however, thanks to NASA's Spitzer Space Telescope, astronomers have obtained an entirely new perspective of our home galaxy: a complete ...


Scientist uncovers relics of ancient cosmos

Scientist uncovers relics of ancient cosmos

Space & Earth / Space Exploration

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

(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.


Organic-Bearing Planetary Disk

Red dust in planet-forming disk may harbor precursors to life

Space & Earth / Astronomy

created Jan 03, 2008 | popularity 4.4 / 5 (12) | comments 0

Astronomers at the Carnegie Institution have found the first indications of highly complex organic molecules in the disk of red dust surrounding a distant star. The eight-million-year-old star, known as HR ...



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