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Rosetta finds ingredients for life on comet

The Rosetta orbiter has detected some of the molecular building blocks for life on a comet, bolstering the theory that life on Earth could have been seeded by a small solar system body, The Washington Post reports. Glycine, an amino acid used to create more complex proteins, and the mineral phosphorus were found in the gas cloud of the comet 67P/Churyumov-Gerasimenko, which the Rosetta orbiter has been following for nearly 2 years. Unlike a previous discovery of glycine on a comet in 2006, this detection was made without bringing the samples back to Earth, reducing the likelihood of any human contamination, according to a study published last week in the journal Science Advances.

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