3I/ATLAS captured the world's attention last month as the comet raced past the Earth, but some believed that it could have been an "alien spacecraft" reaching us ...

For decades, the search for alien intelligence has revolved around the question: if someone out there is listening, how could they hear us? A new study combining data from Penn State and NASA’s Jet ...

Space travel, alien dialogues, fiddling with human DNA—science fiction loves to shatter the limits of the impossible. Yet, not every movie in the genre ...