Astronomy
Exotic dust in comet trail
Comet dust caught in the upper reaches of Earth's atmosphere and scooped up by a NASA aircraft had been found to contain grains of dust dating back to before our Solar System formed. Dust like this is worth its weight in gold for telling us about the original conditions in the solar nebula that formed the planets.
The dust is from comet 26P/Grigg-Skjellerup, which last passed through the inner Solar System in 2002. A year later, Earth itself passed through the trail of the comet, and the NASA aircraft climbed to catch the dust. It was then handed over to a consortium of UK, US and German astronomers who found various chemical treasure troves, including in one dust particle four grains of silicate material that date back to before the formation of the Sun.
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Volunteer For Stardust@home
Please volunteer to help find star dust from the Stardust spacecraft here. This spacecraft brought back dust from comet Wild 2 back to Earth. These dust particles are embedded in aerogel and with help of volunteers they can be found in a few months, opposed...
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An Unexpected Discovery, Comet Lovejoy Contains Alcohol And Sugar.
Comet Lovejoy lived up to its name by releasing large amounts of alcohol as well as a type of sugar into space, according to new observations by an international team of astronomers. The finding suggest that comets could have been a source of the complex...
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The Rosetta Selfie.
The Rosetta spacecraft managed to take this picture before making history.A camera aboard ESA?s Philae lander snapped this 'Selfie' of one of the Rosetta's 52-foot-long [16-meter] solar arrays, with comet 67P/Churyumov?Gerasimenko hovering...
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Comet-2
Comet - 2 ...
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Comet - 1
Comets -1 ...
Astronomy