More doubts cast on potential signs of life on Venus

By Abigail Beall

A new analysis has cast doubt on the recent signal of phosphine gas in Venus’s atmosphere, a finding that could potentially be a sign of life. The scientists who originally discovered this in September found that the quantity of the gas seen couldn’t be produced by any known chemical processes on Venus.

Now, a study suggests the data behind the original paper show no signs of the gas after all.

The original study, led by Jane Greaves at Cardiff University in the UK, examined how light is …