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Science

Were ancient human migrations two-way streets?

Were ancient human migrations two-way streets?

The worldwide spread of ancient humans has been depicted as flowing out of Africa, but new evidence suggests it may have been a two-way street.

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Twitter co-founder Jack Dorsey at the Commonwealth Club

Twitter co-founder Jack Dorsey at the Commonwealth Club

Jack Dorsey created Twitter and launched the company in 2006 with two partners. He is the executive chairman of the company and leads product development. The Commonwealth Club of California named Dorsey its 21st Century Visionary Award winner and invited him to discuss how Twitter came about and talk about his new venture, Square, which lets users accept credit card payments for their products via mobile phones.

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Radiolab: Desperately seeking symmetry

This hour of Radiolab, Jad and Robert set out in search of order and balance in the world around us, and ask how symmetry shapes our very existence -- from the origins of the universe, to what we see when we look in the mirror.

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UND at forefront of unmanned flight as industry set to grow

UND at forefront of unmanned flight as industry set to grow

The University of North Dakota hopes to train unmanned aircraft crews from Customs and Border Protection, the Coast Guard and the Air Force.
by Dan Gunderson

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Next-to-last space shuttle flight lands on Earth

Next-to-last space shuttle flight lands on Earth

Space shuttle Endeavour and its six astronauts returned to Earth early Wednesday, closing out the next-to-last mission in NASA's 30-year program with a safe middle-of-the-night landing.

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The rise of Internet vigilantes

The recent hacking of the PBS website and other high profile, politically motivated data breaches are raising more questions about the security of our computer networks.

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Weighing the health risks of cellphones

Weighing the health risks of cellphones

A leading health organization reviewed dozens of studies and found that cellphones could possibly cause cancer. The news won't end the debate but will it lead to guidelines on cellphone use?

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The future of the space program, 50 years after JFK

The future of the space program, 50 years after JFK

In May 1961, President Kennedy asked a joint session of Congress to put a man on the moon within the decade, and return him safely to earth. The final space shuttle launches in a few weeks. What have we learned from these explorations?

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For recent grads, social media sites play key role in job hunt

For recent grads, social media sites play key role in job hunt

For new college graduates, social media sites like Facebook, Twitter and LinkedIn are playing an increasingly important role in their job search.
by Tim Post

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