Venus' Oceans Existed Long After Life on Earth - Venus’ oceans could have been as recent as 700 million years ago, according to a study by Michael Way and colleagues at NASA's Goddard Institute for Space Studies. Their climate modeling suggests that Venus may have maintained stable, Earth-like temperatures and liquid water for up to 3 billion years before a catastrophic resurfacing event triggered a runaway greenhouse effect. This dramatic shift, possibly caused by volcanic activity releasing ma