This Week in Science

Katarzyna Adamala and Jack Szostak at Massachusetts General Hospital report in Science this week that citrate appears to enable RNA replication in protocells made of fatty acid vesicles. Researchers trying to construct such protocells have found that high levels of magnesium ion within the vesicles would halt RNA replication. The duo screened a number of compounds to search for small molecules that protect the vesicles from Mg2+ leakage.

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In Science this week: self-assembly of DNA components in solution, and more.

Genetics and Molecular Research retracts two gastric cancer papers for being "substantially equal" to other papers, according to Retraction Watch.

A new analysis indicates that the Ebola virus behind the current West African outbreak is mutating at about the same rate as other Ebola viruses.

With the launch of Scott Kelly into space today, the study of him and his earthbound brother to disentangle the effects of life in space from the effects of genetics kicks off.