Sagan's team created the greatest puzzle of all time, which you can only solve if your species understands the basic nature of the universe.

NASA secretly scrubbed signs of an 'alien presence' from historic Apollo photographs of the Moon, a whistleblower physicist has claimed in an interview. Physicist Maaneli 'Max' Derakhshani, who ...

Imagine a super-advanced alien civilization that needs insane amounts of energy way beyond our puny solar panels and wind turbines to power their mega-cities, AI overlords, or whatever interstellar ...

Space is silent, or so we’re told. In the vast vacuum between stars and planets, sound waves can’t travel as they do on Earth. But what if that silence is just an illusion? What if the cosmos is ...