Signs of Life Found on Venus | Biosignature of Alien Life Discovered on Venus | Details in Video

The best evidence for life beyond Earth has been found in the most surprising of places – the atmosphere of Venus.

Scientists have found signs of life on Venus. Scientists have announced on Monday Sept. 4th, 2020 that they have discovered Phosphine in the environment of Venus and that gas is only possible when microorganisms or bacteria emits that in the atmosphere. According to scientists there is a huge possibility of alien life in Venus, but they need solid proof to establish this fact and to get into the conclusion. And for that a space mission and collection of samples from Venus is required.

A team led by Jane Greaves, who is a professor at Cardiff University, has detected the presence of phosphine gas in Venus’ clouds. The intriguing thing about phosphine, which is a molecule formed of three hydrogen atoms and one phosphorous atom, is that on Earth its only natural source is from some anaerobic (i.e., non-oxygen breathing) microbial lifeforms. No known geological mechanism or non-biological chemical reaction produces it on our planet, although it is produced deep inside gas giants like Jupiter and Saturn where hydrogen is plentiful and the temperature and pressure extremely high.

“This was an experiment made out of pure curiosity, really,” says Greaves. “I thought we’d be able to rule out extreme scenarios, like the clouds being stuffed full of organisms. When we got the first hints of phosphine in Venus’ spectrum, it was a shock.”

The discovery, which was made thanks to observations by the James Clerk Maxwell Telescope in Hawaii and the Atacama Large Millimeter/submillimeter Array (ALMA) in Chile, is not confirmation that there is microbial life on Venus, cautions Greaves. Venus is a very different planet to Earth, with high temperatures and atmospheric pressures, and a carbon dioxide-rich atmosphere with clouds made of almost pure sulphuric acid. Although it is possible that there could be some chemical reaction that produces phosphine in Venus’ extreme conditions that does not occur on Earth, at present scientists do not know what that reaction could be.

This lack of knowing is in large part a result of the limited experiments modelling Venus’ chemistry. “There are some really nasty, explosive reactions when you try to put phosphorous compounds together with sulphuric acid,” Greaves tells Astronomy Now. “When we were trying to work out reaction rates, there was nothing to look up because no one had done those experiments on Earth – they didn’t want their lab to explode! But that’s why we’re being cautious in our conclusions.”

There is also the question of how life could survive in an environment like Ve
...
https://www.youtube.com/watch?v=1Q3LuUG7YKQ