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Opinion, arguments & analyses from guest experts and from the editors of Scientific American

Magnitude 7.1 aftershock disrupts efforts at Japan nuclear plant to stave off hydrogen explosions

As northeastern Japan coped with Thursday's magnitude 7.1* aftershock, the largest since the disastrous March 11 magnitude 9.0 earthquake and tsunami, the injection of nitrogen gas into one of the crippled reactors at the Fukushima Daiichi nuclear power plant was interrupted as Tokyo Electric Power Company (TEPCo) workers evacuated to a safer site, according to the Japan Broadcasting Corp (JBP)...

April 7, 2011 — Larry Greenemeier

Space rock: Vote for the new NASA wake-up song

Like most of us, NASA astronauts have to wake up and get to work—even when they're in space. So NASA is running a contest to select two new wake-up songs for the STS-134 shuttle crew when it's at the International Space Station...

April 7, 2011 — Mark Fischetti

Experts on Japan nuclear crisis answer questions from Nature readers

During the morning of April 6, our colleagues at Nature ran a live, online question-and-answer event about the Fukushima Daiichi nuclear crisis. Visitors posted questions for Jim Smith, an environmental physicist from the University of Portsmouth, U.K., and Geoff Brumfiel, Nature’s senior physical sciences correspondent...

April 6, 2011 — Philip Yam

Physicists entangle a record-breaking 14 quantum bits

Quantum information science is a bit like classroom management—the larger the group, the harder it is to keep everything together.

But to build a practical quantum computer physicists will need many particles working in synchrony as quantum bits, or quibits...

April 5, 2011 — John Matson

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