While NASA is busy as heck driving rovers all over Mars trying to find some itsy bitsy evidence of life or history of life, they could be looking in the wrong place.
“Life” seems to thrive more readily in hotter climates than cold. Maybe we should look at Venus a little closer? Also, the turbulent climate of Europa is much more similar to the National Geographic discoveries than Mars. An ice covering with subterranean volcanoes would heat the European underworld enough to sustain life. I imagine it looks more like those National Geographic pics too. We can see the surface of Mars from Earth, we can’t see what’s under the ice of Europa. I wanna look there before spending any more money or effort on Mercury.