Article first published online: 3 JUN 2011
©1997. American Geophysical Union. All Rights Reserved.
Eos, Transactions American Geophysical Union
Volume 78, Issue 12, page 126, 25 March 1997
How to Cite
1997), DeBeers unchallenged, Eos Trans. AGU, 78(12), 126–126, doi:10.1029/97EO00081.(
- Issue published online: 3 JUN 2011
- Article first published online: 3 JUN 2011
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According to a group of Italian physicists, the planet Neptune may be a factory for ethane, not diamonds. Their theory offers a new answer to the question: what happens to all the methane at Neptune.
The planet's atmosphere has significantly more methane than those of fellow gas giants Jupiter and Saturn. Researchers believe that below that atmosphere lies a dense liquid ocean of ammonia, water, and methane— known as the “ices” region—in proportions similar to those on the Sun. The temperature of that ocean of “ices” is thought to be half that of the Sun and believed to be the result of primordial heat leftover from planetary formation.