Even though these characters only appeared in a single episode of a "Star Trek" series, they left an unforgettable mark on ...

They're some of the most sterile places on Earth - but scientists have discovered dozens of new bacterial species inside NASA ...

Scientists have discovered 26 previously unknown bacterial species living inside NASA’s ultra-sterile spacecraft assembly ...

They're some of the most sterile places on Earth - but scientists have discovered dozens of new bacterial species inside NASA ...