[ck2]

Maybe in 50 years we can get probes up to 10% light speed.

200-250 years to reach the planet and then another 20 years for the signal to get back (if we can somehow make a signal strong enough).

So 300 years from now our great-great-grandchildren might know (that's 70 years longer than US history).

But we'd actually have to spend some of that war and terrorism industry money on NASA and private investment to accomplish that. Not sure the politicians would ever bother.