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NASA Researchers Make First Discovery of Life's Building Block in Comet
"Glycine is an amino acid used by living organisms to make proteins, and this is the first time an amino acid has been found in a comet," said Dr. Jamie Elsila of NASA's Goddard Space F...
Physics and Astronomy |
Read morePrimitive asteroids in the main asteroid belt may have formed far from the sun
The team used numerical simulations to show that some comet-like objects residing in a disk outside the original orbit of the planets were scattered across the solar system and into the outer asteroid...
Physics and Astronomy | Read moreComet Particles Provide Glimpse of Solar System’s Birth
These convulsions flung primordial material billions of miles from the hot, inner regions of the gas cloud that later collapsed to form the sun, out into the cold, nether regions of the solar system, ...
Physics and Astronomy | Read moreComet dust reveals unexpected mixing of solar system
A new analysis of dust from the comet Wild 2, collected in 2004 by NASA's Stardust mission, has revealed an oxygen isotope signature that suggests an unexpected mingling of rocky material between...
Physics and Astronomy | Read moreA comet’s tale at Diamond
We already know that comets played a significant role in ensuring that conditions were right for life on Earth. Most of the icy, small planetary bodies that otherwise became comets went into forming t...
Physics and Astronomy | Read moreLike a Rock: New Mineral Named for Astronomer
The International Mineralogical Association has named a new mineral, the first to be discovered in a particle from a comet, in honor of Donald Brownlee, a University of Washington astronomer who revol...
Physics and Astronomy | Read moreNIST micro sensor and micro fridge make cool pair
As described in an upcoming issue of Applied Physics Letters,* the NIST team combined a transition-edge sensor (TES), a superconducting thin film that identifies X-ray signatures far more precisely th...
Physics and Astronomy | Read moreStardust comet dust resembles asteroid materials
When the Stardust mission returned to Earth with samples from the comet Wild 2 in 2006, scientists knew the material would provide new clues about the formation of our solar system, but they didn’t kn...
Physics and Astronomy | Read moreU of M physicist reads the history of the solar system in grains of comet dust
When the spacecraft Comet Wild-2 returned, comet dust was shipped to scientists all over the world, including University of Minnesota physics professor Bob Pepin. After testing helium and neon trapped...
Physics and Astronomy | Read moreDeep Impact extended mission heads for comet
Hartley 2
The EPOXI mission is actually two new missions in one. During the first six months of the journey to Hartley 2, the Extrasolar Planet Observations and Characterization (EPOCh) mission will use the lar...
Physics and Astronomy | Read moreGreen Light for FAIR at GSI
In a joint communiqué signed November 7, 2007, representatives of the partner countries have announced the go-ahead for construction of the international accelerator facility FAIR. Signing on behalf o...
Physics and Astronomy | Read moreClouds of molten droplets in the early solar system?
On October 12th delegates attending the Royal Astronomical Society (RAS) meeting ‘Early Solar System Processes on Meteorites’ will discuss the competing theories. The meeting is being held in honour o...
Event News | Read moreShrinking giants, exploding dwarves
Astronomers have now – for the first time ever – provided a unique set of observations obtained with the ESO Very Large Telescope in Chile and the 10-meter Keck telescope in Hawaii, enabling them to f...
Physics and Astronomy | Read moreLumpy, bumpy, fluffy and layered: a picture of Rosetta's target comet builds up
Observations of the comet using the 8.2 m-ESO Very Large Telescope (VLT) show an irregularly-shaped object that is about 4.6 kilometres in diameter with a rotational period of 12 hours 49 minutes. Ms ...
Physics and Astronomy | Read moreComet probes reveal evidence of origin of life, scientists claim
Professor Chandra Wickramasinghe and colleagues at the University’s Centre for Astrobiology have long argued the case for panspermia - the theory that life began inside comets and then spread to habit...
Physics and Astronomy | Read more
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