A pair of tweezers holds a graphene transistor fabricated on a silicon wafer. An I-Corps team from the University of Pennsylvania is working on scaling up their cheaper method of making high-quality graphene, an extremely strong, conductive material one atom thick that was the subject of a Nobel Prize last year.

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Paranormal investigator Noah Voss points a video camera at an electromagnetic frequency device to record any abnormal activity at the Sun Prairie Cemetery in Sun Prairie, Wis.

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Toxoplasma gondii is a parasite, seen here in brain tissue, that can alter the behavior of the host. It can make rodents attracted to cats, leaving them vulnerable to getting eaten.

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itoggle caption Centers for Disease Control and Prevention

Phil Pressel designed cameras for the government's top-secret Hexagon project. He's only recently been able to speak about his life's work.

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Pythons' huge meals strengthen their hearts, and scientists hope it will help them learn how to treat human heart diseases.

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A worker stands next to an array of Sharp solar cell modules at a power plant south of Tokyo in August. Sharp was one of 1,400 solar panel manufacturers in attendance at the Solar Power International conference, where industry optimism was high.

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