Scientific American, May 2016

In this issue:

"Born of Chaos": New evidence suggests the solar system's early eras were defined by wandering worlds and staggering displays of interplanetary destruction.

"The Maddening Sensation of Itch": How it arises is only now becoming clear.

"Saving Eden": Conservationists are looking to ecotourism to preserve Myanmar's wilderness, but challenges abound.

"Quantum Connections": Scientists are trying to make quantum computers a reality by connecting many small networks together into one large whole.