NASA's Spitzer finds solid buckyballs in space
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 in the cosmos. The new work, led by Prof. Nye Evans of Keele University, appears in a paper in the journal Monthly Notices of the Royal Astronomical Society.
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 football. Their unusual structure makes them ideal candidates for electrical and chemical applications on Earth, including superconducting materials, medicines, water purification and armour.
In the latest discovery, scientists using Spitzer detected tiny specks of matter, or particles, consisting of stacked buckyballs. They found the particles around a pair of stars called "XX Ophiuchi," 6,500 light-years from Earth, and detected enough to fill the equivalent in volume to 10,000 Mount Everests.
"These buckyballs are stacked together to form a solid, like oranges in a crate," said Prof. Evans. "The particles we detected are miniscule, far smaller than the width of a hair, but each one would contain stacks of millions of buckyballs."
Buckyballs were detected definitively in space for the first time by Spitzer in 2010. Spitzer later identified the molecules in a host of different cosmic environments. It even found them in staggering quantities, the equivalent in mass to 15 Earth 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, project scientist for Spitzer at NASA's Jet Propulsion Laboratory in Pasadena, Calif. "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 form 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, Spitzer program scientist at NASA Headquarters in Washington. "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."
Prof. Nye Evans
Trent J. Perrotto
Dr Robert Massey
The new work appears in a paper in the journal Monthly Notices of the Royal Astronomical Society. A preprint can be seen at http://arxiv.org/abs/1112.0518 and the published version can be seen 'online early' at http://onlinelibrary.wiley.com/doi/10.1111/j.1745-3933.2012.01213.x/abstract
Other authors of the paper include Jacco van Loon of Keele University; Charles Woodward and Robert Gehrz of the University of Minnesota, Twin Cities; Geoffrey Clayton of Louisiana State University, Baton Rouge; Andrew Helton of NASA Ames, Moffett Field, California; Mark Rushton and Strewart Eyres of the University of Central Lancashire, United Kingdom; Joachim Krautter of Landessternewarte Heidelberg, Germany; Sumner Starrfield of Arizona State, Phoenix; and Mark Wagner of the Large Binocular Telescope Observatory, Mount Graham, Arizona.
NOTES FOR EDITORS
JPL manages the Spitzer Space Telescope mission for NASA's Science Mission Directorate in Washington. Science operations are conducted at the Spitzer Science Center at the California Institute of Technology in Pasadena. Caltech manages JPL for NASA.
For information about previous Spitzer discoveries of buckyballs, visit http://www.nasa.gov/mission_pages/spitzer/news/spitzer20100722.html and http://www.nasa.gov/mission_pages/spitzer/news/spitzer20101027.html
For more information about Spitzer, visit http://spitzer.caltech.edu and http://www.nasa.gov/spitzer
The Royal Astronomical Society
The Royal Astronomical Society (RAS, www.ras.org.uk), founded in 1820, encourages and promotes the study of astronomy, solar-system science, geophysics and closely related branches of science. The RAS organizes scientific meetings, publishes international research and review journals, recognizes outstanding achievements by the award of medals and prizes, maintains an extensive library, supports education through grants and outreach activities and represents UK astronomy nationally and internationally. Its more than 3500 members (Fellows), a third based overseas, include scientific researchers in universities, observatories and laboratories as well as historians of astronomy and others.
Follow the RAS on Twitter via @royalastrosoc