Are we alone in the universe? It’s the kind of question that fuels debates, History Channel marathons, and real-world space missions. The new documentary Starman dives straight into that mystery by ...

When you buy through links on our articles, Future and its syndication partners may earn a commission. Credit: Robert Stone Productions Gentry Lee, the certified Hall of Famer engineer from NASA's Jet ...

They sound like characters from a new Marvel movie, but these “Planetary Defenders” are real-life scientists in Tucson and elsewhere who are working to save the world from a major asteroid impact.