Sentence 1: Richard A. Kowalski ( born 1963 ) is an American astronomer who discovered many asteroids and comets , including numerous near-earth objects .
Sentence 2: Richard A. Kowalski ( born 1963 ) is an American astronomer who has discovered numerous asteroids and comets , among them , many near-Earth objects .
Question: Do Sentence 1 and Sentence 2 express the same meaning? Yes or No?