NASA News

Space.comPaul Sutter

NASA’s Habitable Worlds Observatory planning: study tests how it could detect biosignatures in an “ancient Earth” atmosphere

NASA is building the Habitable Worlds Observatory (HWO) to search for signs of life on nearby planets. A new study modeled whether HWO could confidently detect atmospheric biosignatures by comparing observations against an “ancient Earth” reference, focusing on the interpretability of biosignature signals.

2026-06-10T06:11:21.595713-07:00

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