Space Invaders

If there’s an advanced extraterrestrial civilization inhabiting a nearby star system, we might be able to detect it using its own atmospheric pollution, according to new NASA research.

BU security expert Jack Weinstein and astronomer Thomas Bania weigh in

Some scientists think so.

The spaceflight action starts on July 14.

Philip Mantle said the UFO sighting could be 'the best we have'

Polls suggest half of all Americans believe in Unidentified Flying Objects. And for the first time, the Defense Department has released videos showing "unidentified aerial phenomena."Want to support 1A? Give to your local public radio station and subscribe to this podcast. Have questions? Find us on Twitter @1A.