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"Last year, we looked into the transmission spectroscopy capabilities of large-aperture ground-based telescopes. TLDR; it will take ~a century to probe Earth-like O₂ levels on one planet with the combined power of 3 enormous telescopes. See paper here: ui.adsabs.harvard.edu/abs/2023AJ....."

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  "Results from a simulated survey of hypothetical Earth-sized habitable zone planets within 20 pc considering both eta_Earth and geometric transit probability showing number of planets surveyed for Earth-like O2 concentrations as a function of survey duration with upcoming ELTs, combined signals from all ELTs, and hypothetical 50 to 100-meter telescopes. The upper panel shows a scenario in which full transits are required, and the lower panel shows a more optimistic scenario in which only partial transits are required."

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createdAt:

"2024-05-21T02:43:36.564Z"