A new NASA project begins to study UFOs

We can accept that science is not sure of everything, but the problem comes when it behaves as if it were so, immediately, changes direction and affirms the opposite. That is what many will think when reading that NASA has decided to create an independent study group to study possible UFO events. What are we left with, then? Are UFOs a possibility, or are they speculation without scientific value? Actually, there are important details that help us understand how these two approaches fit together.