Venus was a habitable planet in a million years ago with liquid state water on its surface, similar to our planet earth, till runaway climate change turned it into a hell world.
New NASA computer models suggest that until 700 million years ago, temperatures ranged from 20C to 50C on the surface.
NASA’s Pioneer Venus mission noticed hints that the planet had once had oceans in the 1980s – however on time, scientists believe that it had evaporated rapidly.
However, new research by the Nasa Goddard Institute for Space Science suggests that the ocean could have lasted for billions of years.
The researchers consider that a mysterious disaster 700 million years ago turned Venus into a hellish world.
Lead researcher Dr. Michael Way stated, “Something occurred on Venus where an enormous amount of gas was released into the atmosphere and could not be re-absorbed by the rocks.
‘On Earth, scientists have got few examples of large-scale outgassing, for occurrence, the origin of Siberian Traps 500 million years ago which is associated with a mass extinction, however nothing on this scale.’
The discovery suggests that life may once have thrived there and means that many planets noticed by telescopes might also once have hosted life, the researchers believe.
Dr. Way stated, ‘We hypothesize that Venus may have had a stable climate for billions of years.
‘It’s possible that the near-global resurfacing event is responsible for its transformation from an Earth-like climate to the hellish hot-house we see at present.
‘Our models show that there’s a real chance that Venus could have been habitable and radically different from the Venus we see today.
‘This opens up every kind of implications for exoplanets found in what known as the ‘Venus Zone,’ which can, in fact, host liquid water and temperate climates.’