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Interstellar fullerenes may help find solutions for earthly matters 5nvklj





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Interstellar fullerenes may help find solutions for earthly matters

Dragon
Dragon
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Post by Dragon Tue Jan 30, 2018 5:14 pm

Fullerenes were first discovered by Harry Kroto in the 1970s, for which he and his colleagues received a Nobel Prize in Chemistry. Recently, fullerenes have been detected in the stellar winds of red giants and in the interstellar medium.

Fullerenes are potent antioxidants and are used in antiviral medications. In particular, fullerenes with anti-HIV properties have been discovered. They are also used as semiconductors, even high-temperature superconductors. Currently, they are synthesized in near-gram quantities. One of the more popular production methods is the graphite electrode arc process. Researchers hypothesize that in deep vacuum conditions with low density, fullerenes are created in other, as yet unknown ways.

A group of astronomers is currently engaged in studies of fullerenes in the interstellar medium. Together, they have contributed to a recent paper in Monthly Notices of the Royal Astronomical Society.

The nearest interstellar clouds with confirmed fullerene are about 1,000 light-years away from Earth. Electromagnetic spectra of 19 distant stars were provided by the VLT telescope in Chile, one of the largest in the world. The authors found fullerenes which left detectable absorption lines in certain frequencies.

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Dragon
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Post by Dragon Tue Jan 30, 2018 5:18 pm

Interstellar fullerenes may help find solutions for earthly matters 170px-C60a  Interstellar fullerenes may help find solutions for earthly matters 240px-Carbon_nanotube_zigzag_povray_cropped

Buckminsterfullerene C60 (left) and carbon nanotubes (right) are two examples of structures in the fullerene family


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Dragon
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Post by Dragon Tue Jan 30, 2018 5:20 pm



In 2010, fullerenes (C60) have been discovered in a cloud of cosmic dust surrounding a distant star 6500 light years away. Using NASA's Spitzer infrared telescope the scientists spotted the molecules' unmistakable infrared signature.

 

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