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We recently discussed the different types of worlds that the Habitable Worlds Observatory (HWO) is expected to find that might have noticeable biosignatures. However, no matter how good the instrumentation on board the observatory is, the data it collects will be useless if scientists don’t know how to interpret it. A paper explaining what data they need to collect before analyzing HWO data was authored by Niki Parenteau, a research biologist at NASA, and her co-authors, which is now available in pre-print on arXiv.

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