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

Astrophysicist and science communicator Neil deGrasse Tyson spills on his obsession with aliens and the best and worst ...

Neil deGrasse Tyson, who for years has laughed off and shot down questions about UAP and aliens, is ready to talk at length about the phenomenon - and wants to see some real proof after the latest ...