"It has been argued that the most likely host candidates for exobiology should be K-type or even M-type stars based on their relatively long life spans and high frequency compared to the other types of main sequence stars," said paper co-author Manfred Cuntz, a professor of physics at the University of Texas at Arlington, and lead scientist of the project. The amount of radiation received by the molecule was pegged to a hypothetical planet situated at a position equivalent to Earth's orbit (thus, the model planet's orbit was a bit farther out from its hotter, F-type star than Earth's).
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