EUROPE: A new research has led space scientists to believe that Venus could once have been flooded with an ocean of carbon dioxide – not necessarily in liquid form, but in gaseous form, and this could have been responsible for the hollow carved out on its surface.
A study led by Dima Bolmatov of the Cornell University has suggested that the surface of the planet might have once filed with oceans of liquid carbon dioxide.
The atmosphere of Venus was filled with carbon dioxide comprising more than 96 percent of its volume.
The inhabitable conditions and extreme hot temperature of the planet stops water to sustain on it. The atmospheric pressure exerted by the planet is about 90 times more than of our planet.
Boffin says that under such extreme atmospheric pressure carbon dioxide could shape into a super critical state, a state where liquid and gas can co-exist. This could have paved the way for oceans of liquid-like carbon dioxide on Venus.
The research team has showed that these super critical substances can shift rapidly between gas and liquid. So if pressure and temperature conditions were ideal, gas-like supercritical carbon dioxide could have been present as well, appearing as bubbles releasing from a thick liquid-like layer.
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