It's definitely the largest planet ever discovered! NASA researchers have just announced that this planet is actually "impossible", but it really exists. B Centauri b is real and it is beyond anything we thought possible in astronomy. With the discovery of this giant, we are once again faced with the big question of what is really possible in this universe. It seems as if the universe is constantly confronting us with extreme discoveries, new superlatives and unsolvable puzzles. B Centauri b not only blows up everything that has gone before in terms of size. This incredible planet also orbits two of the craziest and deadliest stars in the known universe.