Physicist Richard Feynman argued that fundamental limits of physics, biology, and time make interstellar contact between civilizations effectively impossible. He cited vast distances, the speed of ...

Extraterrestrials are already here on Earth, disguised as humans or living in secret bases hidden underground or even on the far side of the moon, according to a shocking new scientific paper from Ivy ...

When you're looking for signs of extraterrestrial intelligence, it helps to know what you're looking for and to go about it ...

Astrophysicist Benjamin Zuckerman concludes that no alien civilization has passed within 100 light-years of Earth in billions of years, based on the absence of alien probes or strong, continuous ...

New research explores how technological civilizations grow, collapse, and recover, and what this means for detecting ...