On September 14, 2020, Astronomers announced the discovery of phosphine in the atmosphere of Venus. This substance is considered a biosignature, so there's a lot of exciting speculation on what might be creating it!

UPDATE: The detection of the phosphine might not be as strong as previously thought! More here: https://www.iflscience.com/space/the-phosphine-signal-from-venus-might-not-be-there-after-all/