This kind of water doesn't exist naturally on Earth, the scientists report in Nature Physics, but it may be present in the mantles of icy planets like Neptune and Uranus. (sciencemag.org)
Dr Andreas Hermann, of the University of Edinburgh's Centre for Science at Extreme Conditions, said: «This study helps us better predict what is inside icy planets like Neptune. (sciencedaily.com)
In an alternative scenario, scientists suggest that a crash between two Mars - sized icy planets about half a million years ago would account for the comet swarm, with frequent collisions among the fragments gradually releasing carbon monoxide gas. (ibtimes.com)