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

Former President Barack Obama said in an Instagram post on Sunday that there was no evidence of aliens. Obama was asked in a recent podcast interview if aliens are real, and he replied, "they’re real.

Former President Barack Obama has claimed "aliens are real" but insisted he hasn't "seen them" in a strange new interview, RadarOnline.com can reveal. In a conversation with podcast host Brian Tyler ...