Departments

• Pluto Lover Alan Stern Discusses Historic July Flyby [Q&A]

• A Hidden World of Complex Dark Matter Could Be Uncovered

• Perovskite Solar Cells Could Beat the Efficiency of Silicon

• Researchers Race to Rescue the Enormous Theorem before Its Giant Proof Vanishes

• From the Editor

  Dark Matter and the Shadow Universe

• Letters

  Readers Respond to "Electric Cures"

• Advances

  Hubble's Proposed Supersize Successor Generates Controversy

• Dams over the Decades

• A 100-Year Debate about the Eardrum Comes to an End

• A Computer's Heat Could Divulge Top Secrets

• The INTERCEPT Blood System Rids Blood Donations of All Pathogens

• Lion Facial Recognition Debuts in Africa

• The Kinetic Theory of Gases Accurately Predicts Nazi Blitzkrieg Attacks

• In Case You Missed It: Need-to-Know News from around the World (July 2015)

• Study of Fetal Perception Takes Off

• Xerox PARC Materials Scientists Print Two Thirds of a Battery in 1 Go

• Forum

  How to Resolve the Fight over Telescopes on Mauna Kea

• The Science of Health

  Researchers Study 3 Promising Anti-Aging Therapies

• The Science Agenda

  Altering Embryo Genes, Safely, Should Not Be Off-Limits

• TechnoFiles

  Will iPhones Change Medicine--by Turning Us All into Subjects?

• Recommended

  Book Review: Aurora

• Book Review: The Only Words That Are Worth Remembering

• Book Review: Seveneves

• Book Review: Persona

• Skeptic

  Why Do Cops Kill?

• Anti Gravity

  What If Ancient Romans Had Invaded America?

• 50, 100 & 150 Years Ago

  Railways and Subways: Building the New Mass Transit

• Graphic Science

  Africa Dwarfs China, Europe and the U.S.