Close

Search

Search Menu
Photonics Media Photonics Buyers' Guide Photonics EDU Photonics Spectra BioPhotonics EuroPhotonics Industrial Photonics Photonics Showcase Photonics ProdSpec Photonics Handbook
More News
SPECIAL ANNOUNCEMENT
2016 Photonics Buyers' Guide Clearance! – Use Coupon Code FC16 to save 60%!
share
Email Facebook Twitter Google+ LinkedIn Comments

Universe May Hold Diamond Concentrations

Photonics Spectra
Feb 1999
Our galaxy may contain high concentrations of tiny diamonds in carbon-rich planetary nebulae. That's the finding of a group of researchers from the Institut d'Astrophysique Spatiale in Paris.

The group theorized that the low pressures and temperatures inside the nebula give birth to diamonds. Conversely, it is high temperatures and pressure that foster diamond growth on Earth. The difference may lie in the presence of a tiny molecule called adamantane that serves as a precursor for diamonds on Earth and may be present in late-stage stars. The group concedes, however, that these findings are preliminary and open to dispute.

"In some of these nebulae, an infrared spectral characteristic has been observed and remains unexplained," said Louis d'Hendecourt, head of the research team. "Up to now, no convincing explanation has been given [for] this observation."

If the group's theories prove correct, up to 10 percent of the dust that envelops these stars could be diamonds.


Comments
Terms & Conditions Privacy Policy About Us Contact Us
back to top

Facebook Twitter Instagram LinkedIn YouTube RSS
©2016 Photonics Media
x Subscribe to Photonics Spectra magazine - FREE!