Tests run on Martian soil samples indicate the presence of organic compounds, but the traces of carbon may or may not have come from once-living things.
The Scientist
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The Mars rover has reportedly made a major discovery, but the world won’t know what it is until next week at the earliest.
An attempt to regrow the infamous GFAJ-1 bacteria, reported to incorporate arsenic into its DNA backbone, has failed.
Researchers discover microbes in Oregon thriving in extreme, Mars-like conditions.
Researchers have mapped out the DNA of what some scientists claim to be an arsenic loving bacterium.
A researcher is repeating the controversial experiments that suggested a bacterium used arsenic rather than phosphorus in its DNA—with the world watching.
As debate continues to swirl around arsenic-loving bacteria, a space rock yields new astrobiological clues
More than a dozen researchers voice their concerns about a 2010 paper that claims bacteria can use arsenic in place of phosphorus in its DNA and other biomolecules
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