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Search results for planetesimals

Space Exploration Apr 6, 2012

Team finds asteroids were bombarded by iron loving elements too

(Âé¶¹ÒùÔº) -- A team made up of a diverse group of researchers has found after studying the composition of several asteroids that most such planetesimals had an abundance of highly siderophile elements in their mantles suggesting, ...

Astronomy Mar 9, 2012

Stars with dusty disks should harbor Earth-like worlds

Stars with disks of debris around them might be good targets to search for Earth-like planets, researchers say.

Astronomy Feb 28, 2012

New model provides different take on planetary accretion

(Âé¶¹ÒùÔºOrg.com) -- The prevailing model for planetary accretion, also called fractal assembly, and dating back as far as the 18th century, assumes that the Solar System’s planets grew as small grains colliding chaotically, ...

Astronomy Dec 30, 2011

Subaru's sharp eye confirms signs of unseen planets in the dust ring of HR 4796 A

(Âé¶¹ÒùÔºOrg.com) -- The SEEDS (Strategic Exploration of Exoplanets and Disks with Subaru Telescope/HiCIAO) project, a five-year international collaboration launched in 2009 and led by Motohide Tamura of NAOJ (National Astronomical ...

General Âé¶¹ÒùÔºics Nov 16, 2011

UCF students to experience free-fall for physics experiment

(Âé¶¹ÒùÔºOrg.com) -- A team of current, past and future University of Central Florida students will float around in weightlessness like astronauts this month as part of a physics experiment that could provide valuable information ...

Space Exploration Nov 11, 2011

Lutetia: A rare survivor from the birth of the Earth

(Âé¶¹ÒùÔºOrg.com) -- New observations indicate that the asteroid Lutetia is a leftover fragment of the same original material that formed the Earth, Venus and Mercury. Astronomers have combined data from ESA’s Rosetta spacecraft, ...

Space Exploration Oct 27, 2011

Up close, asteroid seen to be chunk of would-be planet

A rare opportunity to observe an asteroid at close quarters has unveiled a remarkable rock that seems to be a precursor of a planet, astronomers reported on Thursday.

Astronomy Oct 26, 2011

Faraway Eris is Pluto's twin: Dwarf planet sized up accurately as it blocks light of faint star

(Âé¶¹ÒùÔºOrg.com) -- Astronomers have measured the diameter of the dwarf planet Eris by catching it as it passed in front of a faint star. This was seen by telescopes in Chile, including the TRAPPIST telescope at ESO's La Silla ...

Space Exploration Oct 25, 2011

Strange hollows discovered on Mercury

NASA's MESSENGER spacecraft has discovered strange hollows on the surface of Mercury. Images taken from orbit reveal thousands of peculiar depressions at a variety of longitudes and latitudes, ranging in size from 60 feet ...

Space Exploration Oct 13, 2011

The hazy history of Titan's air

What rocky moon has a nitrogen-rich atmosphere, Earth-like weather patterns and geology, liquid hydrocarbon seas and a relatively good chance to support life? The answer is Titan, the fascinating moon of Saturn.

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