A scientific study published in 2019, says that we can find extraterrestrial life by finding the amount of phosphine in the atmosphere of planets. Phosphine is a gas produced by anaerobic organisms, organisms who don't need oxygen to live.
Phosphine: PH3
Phosphine is found in gas giants like Jupiter and Saturn. It is because of an abundant source of hydrogen, not due to life forms. But in oxygen-rich like Earth, they are not prevalent.
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| Phosphine Molecules on the clouds of Venus |
Recently, we have discovered phosphine in the clouds of Venus. It is not our first sighting. Vega probes of Soviet union have landed on the surface of Venus and predicted phosphorus. But it was not precise.
Vega founded particles about 1 micron thick (Thickness of bacteria) suspending on the atmosphere. But how anything can live in Venus which is covered by a deadly acid, Sulphuric acid!
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| Picture of Surface of Venus |
One of the ideas is that sulphur molecule (S8) covers microbes of the Venus. Sulphur molecules are impenetrable by sulfuric acid, thus keeping the microbes alive.
You can think that Vega transferred bacteria from planet Earth to Venus. If that was the case, we should have expected a slight composition of phosphine contrast to the reality!
We are not sure about life in Venus. But we do not know any other phosphine producing agent. Maybe it is an unusual feature of Venus to produce phosphine.
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