Why would you waste weight and send organisms? I can't see anything useful coming out of it. And it would be sad if these organism wiped out alien life. The pr

Why would you waste weight and send organisms? I can't see anything useful coming out of it. And it would be sad if these organism wiped out alien life. The probes need as many sensors as possible. It will already be super tricky to make any observations from a probe that goes at a tenth of the speed of light. And how do you get your data back from that distance without huge antennas?