Earth may have had its water delivered by a vast cloud of vapour

Rather than getting its water from impacts, our planet may have drawn in water vapour after the sun boiled it off early icy asteroids

​Rather than getting its water from impacts, our planet may have drawn in water vapour after the sun boiled it off early icy asteroids Rather than getting its water from impacts, our planet may have drawn in water vapour after the sun boiled it off early icy asteroids