With a NASA press conference still to come at 2 p.m., U.S. scientists are reporting that a microbe, plucked from a California lake, can use arsenic to make proteins and other key molecules including DNA.
With a NASA press conference still to come at 2 p.m., U.S. scientists are reporting that a microbe, plucked from a California lake, can use arsenic to make proteins and other key molecules including DNA.