The two probes sent in the 70s. Amazing, but they are still looking at (and reinterpreting) the data.
many knew the data was consistent with life, originally.
Consider how much data is arriving every day from scientific satellites. Much of it is available for the amateur to go over if he wants to download and do whatever analysis he chooses. So much data is already archived that it would keep doctoral candidates in astronomy loaded with possible dissertations for hundreds of years. The data is just sitting, maybe once looked at for a purpose and then filed.