“Are we alone?” Scientists search one planet for alien signals

Scientists say the findings of the new study may make future searches for extraterrestrial intelligence faster and more ...
The Debrief

No Sample-Return Required? Scientists Demonstrate Extraterrestrial Biosignature Detection Method Using the Mars Rover’s Existing Instruments

A new mineral-based biosignature detection method could identify signs of life on Mars using the Perseverance Rover's ...
NPR

Sources & Methods

National security, unlocked. Each Thursday, host Mary Louise Kelly and a team of NPR correspondents discuss the biggest national security news of the week. With decades of reporting from battlefields ...