Mars was once considered as the planet that has potential to hold human life, likewise Earth. But the latest evidence suggests that the second planet in our solar system Venus may have had an ocean.
The study published in the Journal of Geological Research: Planets provides a new clue to whether Venus could have ever supported life. Scientists found that the planet oft-touted as an exemplar of a runaway greenhouse effect may have once formed an ocean.
Michael Way, an astrophysicist at the NASA Goddard Institute for Space Studies in New York City said, “This work plays into a much bigger puzzle of understanding the habitability of exoplanets.”
In the study, scientists run PC recreations that ascertained how the cooling of a youthful rough planet’s liquid surface would connect with its creating air and approaching warmth from the youthful Sun. With carbon dioxide similar to current levels, early Venus would need only 10 percent of the mass of water in Earth’s oceans to form its own watery surface. Changing the reflectiveness of the clouds and a few other factors show Venus would need almost 30% of the mass of water in Earth’s ocean to form its own ocean.
Planetary scientist Emmanuel Marcq said, “It’s not surprising that Venus may have had an ocean. But whether it actually did is very much a hotly debated, open question. The new work might raise the odds that water vapor could have condensed into an ocean on Venus.”
“Life as we know it requires stable liquid water on a solid surface. Keeping water on a planet requires a specific range of temperatures and pressures. Although it depends on a complex interplay of the planet’s atmospheric composition, the reflectivity of its clouds, how much heat the atmosphere and surface absorb from its star, how much the atmosphere leaks into space and much more.”