Incredible Chickadees Memory, Bringing Mars Samples to Earth, and TDIH - The First Solar Cell

The incredible memory of Mountain Chickadees, plus NASA is soliciting help to bring Mars samples back to Earth faster and cheaper, and on This Day in History, the first solar cell is unveiled.  Chickadee Memory (GNN) (University of Colorado) Mars Samples (AP News) First Solar Cell (Popular Science) Contact the show - coolstuffcommute@gmail.com Instagram - Facebook Learn more about your ad choices. Visit megaphone.fm/adchoices Learn more about your ad choices. Visit megaphone.fm/adchoices