Researchers claim to have found the origins of water
Daily MailAlthough it makes up 70 per cent of our planet's surface, scientists still don't all agree on where Earth's water actually comes from. According to scientists from the University of Portsmouth, water first formed in the debris of supernova explosions 100 to 200 million years after the Big Bang. The dense 'molecular cloud cores' in which water formed most abundantly are a likely origin of protoplanetary disks, swirling clouds of dust that go on to form planets, and low-mass stars such as our sun. The researchers write: 'These disks would have been heavily enriched by primordial water, to mass fractions that were 10–30 times greater than those in diffuse clouds in the Milky Way in the CC supernova core and to only a factor of a few lower than those in the Solar System today.' The large amount of water and high chance of a low-mass star forming raises the possibility that planets with liquid water could form in the aftermath of those first supernova explosions.
History of this topic
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