We know essentially nothing about life beyond Earth.
( We ( ( ( know ( ( essentially nothing ) ( about life ) ) ) ( beyond Earth ) ) . ) )
(ROOT (S (NP (PRP We)) (VP (VBP know) (NP (NP (RB essentially) (NN nothing)) (PP (IN about) (NP (NN life)))) (PP (IN beyond) (NP (NNP Earth)))) (. .)))
There is life beyond earth. 
( There ( ( is ( life ( beyond earth ) ) ) . ) )
(ROOT (S (NP (EX There)) (VP (VBZ is) (NP (NP (NN life)) (PP (IN beyond) (NP (NN earth))))) (. .)))