In this issue:
"Loops, Trees and the Search for New Physics": Unifying the forces of nature might not be as difficult as physicists thought it would be.
"Erasing Painful Memories": Painful memories could be erased with new drug and behavioral therapies.
"Tomorrow’s Medicine": A look at some of the most exciting medical tools that are in development today.
"A Better Eye on the Storm": Radars, satellites and computers may soon give weather forecasters enough advanced warning to save many more lives.
Want more Scientific American?
©2012 Scientific American