Ocean acidification during Permian period may have caused the Great Dying.

In 1844 Samuel Morse sent a telegram from Washington, D.C., to Baltimore using pulses of electrons to encode “What hath God wrought.” Now that message has gotten a reply, courtesy of physicist Kevin McFarland and a team of his colleagues. “Neutrino” was the team’s tongue-in-cheek response, broadcast in the first-ever message carried by these ghostly particles. It was supposed to be “neutrinos,” but someone goofed and cut off the “s.” This offbeat project started with Daniel Stancil, an electrical engineer at North Carolina State University in Raleigh. He’s been think... (p. 32)

Top scientists share stories and words of wisdom with finalists at the Intel International Science and Engineering Fair.

The 2012 Intel International Science & Engineering Fair opened in Pittsburgh on May 13, with more than 1,500 high school students attending the weeklong competition.