Many people who don’t believe one conspiracy theory about that station—known as the High-frequency Active Auroral Research ...

Radio silence has long puzzled those searching for extraterrestrial intelligence, but the answer might lie much closer to the source of potential signals than previously thought. Conditions around ...

What steps can be taken to identify why we haven’t received radio signals from an extraterrestrial intelligence, also called technosignatures? This i | Space ...

Scientists simulated an asteroid impact, and Deinococcus radiodurans’ cell membranes made it through. This suggests that life-forms flung into space by violent impacts may have colonized planets and ...

An analysis of dozens of previously published studies reveals people systematically underestimate their own vulnerability to climate threats.