Life on Venus?

Hmm. I just learned about the Martian labeled release experiment done in the 70s by the Viking landers. They took soil samples and injected nutrients tagged with Carbon-14, then monitored for evolved gas which could result from metabolism. This produced positive results with multiple samples from both landers. Control tests were done to eliminate the effect of UV-chemistry and samples were heated at different temperatures to help distinguish biology from chemistry. Results were dismissed due to the lack of detection of organic compounds (at the time) and the lack of water, along with the result of chemical experiments carried out involving gamma ray interactions with perchlorate which could partially explain the results. This seems like it was possibly stronger evidence of life than phosphine on Venus. I wonder how the phosphine discovery will turn out.