Is There an Interchange of Life Between the Inther Planets?

We have some rovers on mars as we speak, and those are going to assemble. I would give it maybe a ten 25 % chance that we find some old life. The real question then might be, what can our telescopes tell us about exo planets? Because that's the other cool thing and being interested in alien life. Right now we're living in this renaissance era where not just ruvers on mars, but we're discovering xo planet at a ridiculous rate.