All comets articles
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Research
Comets’ green colour comes from dicarbon dissociation, experiments confirm
First direct observation of C2 photodissociation explains why some comets have a green halo
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Research
Surprise as nickel vapour is found in comet tails far too cold for metal sublimation
Discovery points to unusual organometallic chemistry going on in deep space
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Research
Impact of extra-terrestrial glycine delivery could have created nucleobase precursors
Quantum simulations show that comets and other celestial bodies may have not only delivered building blocks for life to Earth, but also synthesised them on impact
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Research
DNA sugar could form on icy asteroids and comets
Water–methanol ices bombarded with UV simulate conditions found on comets and asteroids
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Research
Organic coat might explain interstellar object’s missing tail
Blanket of icy compounds could have protected ‘Oumuamua from the sun’s heat
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Research
Cometary chloromethane detection scuppers use of chemical in hunt for ET
Organohalogen found simultaneously in the tail of a comet and the cloud surrounding a protostar
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Research
Rosetta captures comet dust after finally finding Philae
Analysis of ancient dust particles from 67P reveals primitive organic compounds
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Research
Rosetta detects oxygen on comet 67P
Molecular oxygen has been detected in the coma of a comet for the first time
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Podcast
Chemistry World podcast – August 2015
In this space special, we learn how to study comets surfaces, and speak to a Nobel Prize winner about his 20-year-old prediction proving to be correct
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Feature
More than dirty snowballs?
Comets are thought to represent leftover building blocks of the solar system; Jennifer Newton finds more questions than answers
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Research
Philae poses comet chemistry conundrum
Historic mass spectra find 67P carries precursors to key biomolecules, but instruments detect different ones
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Podcast
Chemistry World podcast – March 2015
How cephalopods teach chemists about camouflage, and new ways to convert carbon dioxide into useful materials
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Research
Comet 67P’s carbon blanket promises solar system birth insights
Rosetta probe suggests comet contains complex organic compounds similar to those found in nebula that spawned the sun and planets
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Research
Philae detects organics on comet's surface
Scientists get first measurements from historic comet landing
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Research
Where did Earth’s water come from?
Study of meteorite isotope ratios suggests Earth’s water was delivered by express asteroid rather than comets