[wingspar]

"Potential signs of life on Venus are fading fast

...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. ..."

https://science.sciencemag.org/content/370/6520/1021