The search for intelligent alien life reaches far beyond simply finding another habitable planet. Across the universe, scientists can look for signs that advanced civilizations may leave behind, from ...

What if technosignatures and biosignatures are not the only ways intelligent alien life can make itself apparent?

As a mathematician—and given the recent buzz over UFO disclosures—I find myself entertained by a specific hypothetical: If a silver saucer crewed by extraterrestrials ever touched down, then what on ...