NASA Administrator: The prospect of alien life is at the heart of all space exploration

<p>NASA Administrator Jared Isaacman says answering the question of alien life is inherent in all space exploration, and the odds of finding evidence at some point that suggests we're not alone is "pretty high." Plus, NASA has achieved extraordinary leaps in space, but a functioning toilet is typically not one of them. Isaacman called a working toilet aboard the spacecraft a "bonus capability."</p>