Airborne diseases kill millions of people a year, despite available antibiotics and vaccines. But scientists think there might be another solution to fighting these diseases, one that harnesses the power of light.For more, go to http://vox.com/unexplainableIt’s a great place to view show transcripts and read more about the topics on our show.Also, email us! unexplainable@vox.comWe read every email.Support Unexplainable by making a financial contribution to Vox! bit.ly/givepodcastsLearn more about your ad choices. Visit podcastchoices.com/adchoices