This is so exciting. It was my brother to brought us the news. We are all Trekkers (or Trekkies)
With such an observable and tangible discovery, it would add much impetus to develop the technology to mount a space mission there. But I think better also keep watching them if assuming there is an advanced civilization there trying to reach us. It would be far harder for them to spot us than us coming across them. Who knows, some other space faring race might have already been there and perhaps colonize these planets and using that star system as a base to launch out. The barrier between them and us is 40 light years. How forbidding is that depends on what you have to travel.
Meanwhile I see Bible theologians who are used to thinking in the box convinced that these are lifeless planet size rocks.