Birdnow's Aviary

November 28, 2020

Life on Venus Unlikely After All

Timothy Birdnow

A short while back there was some evidence life may be floating in the clouds of Venus. Looks like that hypothesis has been shot down. https://science.sciencemag.org/content/370/6520/1021

Here is the summary:

"In September, researchers reported discovering signs of phosphineâ€”a toxic compound that on Earth is made in significant amounts only by microbes and chemistsâ€”in radio emissions from Venus's atmosphere. The unexpected detection could point to a microbial biosphere floating in the venusian clouds. But those results have since come under scrutiny, including from the original discovery team, which, citing a calibration error in one telescope it used, has downgraded the strength of its claim. Although the proponents remain confident of a phosphine detection, other astronomers have suggested that sulfur dioxide, which makes up most clouds on Venus, could have caused a similar absorption, among other critiques. Further observations next year will likely be needed to resolve the debate."

Posted by: Timothy Birdnow at 11:27 AM | Comments (33) | Add Comment
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