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Prizefight

Two gadgets enter the ring, but only one can leave the champion! Each week Brian Tong pits two compe

Article

No, arsenic is not a life-giver

A 2010 NASA study that suggested a bacterium could thrive on arsenic instead of phosphorus is refuted by two new pieces of research.

By July 9, 2012

Article

New bacteria redefines 'life as we know it'

A recently discovered microbe has DNA unlike any other life form on Earth. It is able to substitute arsenic for phosphorus, and it may help us understand how life could prosper elsewhere.

By December 2, 2010