#Venus #Earth – There’s mounting evidence that Venus was once habitable : With its acid thunderclouds, scorching surface, and atmospheric pressure that would crush your bones, the oppressive hellscape of Venus makes it one of the most uninviting places in the entire Solar System. But it’s looking more and more likely that when life first evolved on Earth, Venus might have actually been a viable holiday destination.
“Both planets probably enjoyed warm liquid water oceans in contact with rock and with organic molecules undergoing chemical evolution in those oceans,” David Grinspoon at the Planetary Science Institute in Tucson, Arizona told Aviva Rutkin at New Scientist.
“As far as we understand at present, those are the requirements for the origin of life.” Scientists have been proposing for years now that Venus might not have always been the hottest planet in the Solar System.
Back in 2010, researchers have pointed to the fact that Earth and Venus are surprisingly similar in size, density, and composition, their close proximity suggesting that they were probably formed using the same base materials.
“Venus also has an unusually high ratio of deuterium to hydrogen atoms, a sign that it once housed a substantial amount of water, mysteriously lost over time,” says Rutkin.