Did far-off comets with watery oceans...
31.07.09
The actuality of water in comets bolsters support for a possible connection between life on Earth and comets.
The theory, known as Cometary Panspermia and pioneered by Chandra Wickramasinghe and the belated Sir Fred Hoyle, argues that life was introduced to Earth by comets.
“These calculations, which are more all-encompassing than any done before, leaves little doubt that a large fraction of the 100 billion comets in our solar procedure did indeed have liquid interiors in the past,” Chandra Wickramasinghe, professor at Cardiff University and survey leader, said.
The Cardiff University team has calculated the thermal history of comets after they formed from interstellar and interplanetary dust give 4.5 billion years ago.
Wickramasinghe and colleagues claim that the heat emitted from radioactivity warms initially frozen corporeal of comets to produce subsurface oceans that persist in a liquid condition for a million years.
The establishment of the solar system itself is thought to have been triggered by shock waves that emanated from the bang of a nearby supernova.
Source: Gaea Times