Some scientists believe that Planet Venus may have been a safe haven where life could have thrived billions of years ago before becoming the “hellish” planet with extreme and deadly conditions that it is today. 

Per an earlier IBTimes report, a new NASA computer model actually shows that Venus’ climate history used to be fairly livable and that it could be cool enough for life to survive billions of years ago. 

Based on the study, the temperature on Venus may have ranged from 20 degrees Celcius to about 50 degrees Celcius around 700 million years ago. Because of this theory, some scientists believe that the planet was cool enough for flowing water to exist — an important element for life to survive. 

The new computer model incorporated information gathered by NASA’s Pioneer Venus mission which launched in the 1980s. The data taken during the mission showed that it was very possible that Venus once had a shallow ocean.

However, a new study now shows that this may not have been the case and that Venus was never covered by a liquid ocean many years ago. According to Space.com, scientists of the study said that what scientists believe to be oceans of water on Venus may never have existed at all. 

The initial theories that show Venus may have been temperate enough for liquid water to exist are being revalidated by a new theory that shows that the highlands of Earth’s twin are not covered in water but lava. 

Based on the composition of the highland rocks, the new study theorizes that the geological makeup is more basalt rock than granite rock. The later is known to be formed using lots of water. This new finding was based on the analyzation of a survey of Venus' Ovda Regio highlands plateau which was remapped with radar data gathered by NASA's Magellan mission. 

"We know so little about Venus' surface. If the Ovda Regio highlands are made of basaltic rock as is most of Venus, they were likely squeezed up to their current heights by internal forces, possibly like mountains which result from plate tectonics on Earth," Allan Treiman, a Universities Space Research Association scientist at the Lunar and Planetary Institute and a team member of the study, said in a statement.

Venus is one of the most difficult planets to study because of its very deadly atmosphere. Per the report, the planet is completely covered in clouds and has a hell-like surface because of the greenhouse gas effect wherein the temperature can reach a dangerous level of 700 degrees Fahrenheit. 

venus-smooth Venus appears featureless when viewed in visible light. Photo: NASA