To assess the plausibility of alien visitors, it’s necessary to understand the obstacles that an extraterrestrial vessel would need to overcome to reach Earth ...

To travel between solar systems, a spacecraft would need extremely sophisticated – if not impossible – technology.

On May 22, 2026, the Pentagon released a second batch of declassified photos and videos showing what appear to be unexplained ...

A mysterious object spotted hurtling toward Earth has sparked a wave of global panic and wild alien invasion theories online. Unsplash Astronomers have confirmed the discovery of a new interstellar ...

Barack Obama's insisting the USA doesn't have little green men or alien spaceships locked up in an underground bunker somewhere ... but, if they ever visit Earth, he's volunteering to lead the ...

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