In this issue:
"Supersymmetry and the Crisis in Physics": The decades long theory that physicists have been working on is now at a vital crossroads.
"Cancer’s Off Switch": A new approach to immunotherapy that attempts to release the brakes that normally hold back an otherwise powerful immune response.
"Is Anybody in There?": The ability to communicate with patients who appear to lack consciousness is now becoming a reality.
"Fossil GPS": A new technique is improving the odds of finding ancient bones.