The Big Questions

There are a lot of outstanding questions and issues, both academic and practical, facing the world, and Harvard University's George Whitesides tells Technology Review that one intellectual question he'd like to better understand is the origin of life — how does something go random chemicals to a "set of reactions that are getting more complicated spontaneously."

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In Science this week: gene linked to expansion of the human neocortex, and more.

The National Institute of General Medical Sciences director says changes the agency made have allow it to boost success rates.

Ancient DNA indicates Stone Age, hunter-gather inhabitants of Britain imported wheat.

Joel Achenbach explores at National Geographic why people find science difficult to believe.