Peer Review

Two years ago, a press conference was held at NASA headquarters, where it was declared that an alien life form had been discovered in Earth’s backyard. It wasn’t green and it didn’t say “take me to your leader”.  But still, this tiny microbe dubbed “arsenic-life” caused quite a ruckus in the scientific community. Dan Vergano is a science correspondent for USA Today and he joins us to discuss his investigation into the study.