The discovery of boron on Mars gives scientists more clues about whether life could have ever existed on the planet, according to a paper published in the journal Geophysical Research Letters.

"Because borates may play an important role in making RNA -- one of the building blocks of life -- finding boron on Mars further opens the possibility that life could have once arisen on the planet," said Patrick Gasda, a postdoctoral researcher at Los Alamos National Laboratory and lead author on the paper. "Borates are one possible bridge from simple organic molecules to RNA. Without RNA, you have no life. The presence of boron tells us that, if organics were present on Mars, these chemical reactions could have occurred."

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