Venus has been considered a potential location for extraterrestrial life for decades. On the surface, of course, you'd be crushed & incinerated immediately. About 50km up, though, the temperature & pressure are fine: you could in principle survive with just heavy-duty scuba gear.

Exploring the atmosphere of Venus seems like a very good idea, for a lot of reasons. This new announcement that Venus's atmosphere contains phosphine, a molecule that appears very difficult to produce on Venus through non-biological processes, makes Venus even more enticing.

I, for one, am looking forward to the Venus cloud-habitat airships https://sacd.larc.nasa.gov/smab/havoc/  (thx @jsnell for the reminder that this NASA concept exists)