`` If it is mostly ocean with a small rocky core '' , Natalie Batalha , one of the scientists on the project , speculated , `` it 's not beyond the realm of possibility that life could exist in such an ocean '' .
`` If it is mostly ocean with a small rocky core , '' Natalie Batalha , one of the scientists on the project , speculated `` it 's not beyond the realm of possibility that life could exist in such an ocean . ''