How can radio astronomers successfully identify extraterrestrial radio signals while discerning them from Earth-based radio signals? This is what a recent study published in The Astronomical Journal ...

Scientists have proposed building a lunar quarantine facility to examine samples returned from Mars and other celestial ...

Protecting planets from extraterrestrial invasion might sound like a job that only exists in science fiction. But NASA recently posted a "Help Wanted" ad for exactly this position, under the name ...

Louisiana Senator John Kennedy said that eating certain frozen shrimp could make you look like the xenomorph from Alien. The politician warned against the contaminated seafood, which has been recalled ...

A “selfie” taken by the Perseverance Mars rover as it examines Cheyava Falls, an arrowhead-shaped rock in the center that contains potential biosignatures of past Martian life. Credit: ...