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Spitzer finds solid buckyballs in space

A research team was able to identify the solid form of these carbon molecules in the Spitzer data because they emit light in a unique way that differs from the gaseous form.
RELATED TOPICS: SPITZER | GALAXIES
buckeyballs
NASA's Spitzer Space Telescope has detected the solid form of buckyballs in space for the first time. To form a solid particle, the buckyballs must stack together, as illustrated in this artist's concept showing the very beginnings of the process. Credit: NASA/JPL-Caltech
Astronomers using data from NASA’s Spitzer Space Telescope have, for the first time, discovered buckyballs in a solid form in space. Prior to this discovery, the microscopic carbon spheres had been found only in gas form.

Formally named buckminsterfullerene, buckyballs are named after their resemblance to the late architect Buckminster Fuller’s geodesic domes. They are made up of 60 carbon molecules arranged into a hollow sphere, like a soccer ball. Their unusual structure makes them ideal candidates for electrical and chemical applications on Earth, including superconducting materials, medicines, water purification, and armor.

In the latest discovery, scientists using Spitzer detected tiny specks of matter, or particles, consisting of stacked buckyballs. They found them around a pair of stars called XX Ophiuchi that lies 6,500 light-years from Earth.

“These buckyballs are stacked together to form a solid, like oranges in a crate,” said Nye Evans of Keele University in England. “The particles we detected are miniscule — far smaller than the width of a hair — but each one would contain stacks of millions of buckyballs.”

Spitzer detected buckyballs in space for the first time in 2010. It later identified the molecules in a host of different cosmic environments. It even found them in staggering quantities — the equivalent in mass to 15 Moons — in a nearby galaxy called the Small Magellanic Cloud.

In all of those cases, the molecules were in the form of gas. The recent discovery of buckyballs particles means that large quantities of these molecules must be present in some stellar environments in order to link up and form solid particles. The research team was able to identify the solid form of buckyballs in the Spitzer data because they emit light in a unique way that differs from the gaseous form.

“This exciting result suggests that buckyballs are even more widespread in space than the earlier Spitzer results showed,” said Mike Werner from NASA’s Jet Propulsion Laboratory in Pasadena, California. “They may be an important form of carbon — an essential building block for life — throughout the cosmos.”

Buckyballs have been found on Earth in various forms. They develop as a gas from burning candles and exist as solids in certain types of rock, such as the mineral shungite found in Russia, and fulgurite — a glassy rock — from Colorado that forms when lightning strikes the ground. In a test tube, the solids take on the form of dark brown goo.

“The window Spitzer provides into the infrared universe has revealed beautiful structure on a cosmic scale,” said Bill Danchi from NASA Headquarters in Washington, D.C. “In yet another surprise discovery from the mission, we’re lucky enough to see elegant structure at one of the smallest scales, teaching us about the internal architecture of existence.”

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