Digital Forensics: How Experts Uncover Doctored Images - Modern software has made manipulation of photographs easier to carry out and harder to uncover than ever before, but the technology also enables new methods of detecting doctored images
Does Time Run Backward in Other Universes? - One of the most basic facts of life is that the future looks different from the past. But on a grand cosmological scale, they may look the same
The Ethics of Climate Change: Pay Now or Pay More Later?
The Tunguska Mystery - Finding a piece of the elusive cosmic body that devastated a Siberian forest a century ago could help save the earth in the centuries to come