One of the advantages of having so many telescopes watching large parts of the sky is that, if astronomers find something interesting, there are probably images of it from before it was officially discovered sitting in the data archives of other satellites that noone thought to look at. That has certainly been the case for our newest interstellar visitor, 3I/ATLAS, which, though discovered in early July, had been visible on other telescopes as early as May. We previously reported on Vera Rubins detection of 3I/ATLAS well before it was officially found, and now a new paper has found the interstellar object in TESSs data going back to early May - and it looks like it may have been active around that time.