A man checks his car in Havana. In October, Cuba legalized the sale and purchase of automobiles for all citizens. Now, Cubans who leave the island permanently can transfer ownership of their car to a relative or sell it outright. Previously, Cuba could seize the vehicles of those who emigrated.

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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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Brian Williams will set the course for the new NBC newsmagazine Rock Center. The network is positioning it as a serious news program and expecting a ratings struggle, at least at first.

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A truck driver cleans his windshield at a filling station in Milford, Conn. The long hours, weeks away from home and mediocre pay contribute to the trucking industry's shortage of an estimated 125,000 drivers.

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The New York Times' move to install a pay wall in March was seen as risky, but the paper's profits and its digital subscribers are up, according to third-quarter profit reports.

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