You'd think that a man who has made four theatrical movies about contact with extra-terrestrial life, both benevolent and malevolent, would have had at least one close encounter in his lifetime. But ...

Don't miss the biggest exclusive stories of the week: Sign up to our US Editor's Picks newsletter for FREE A pioneering astronaut who helped launch the private manned space program has revealed a ...

In a world easily startled by sensationalism, Tyson offers a cool, gentle voice of reason amid the unchecked fascination with ...