Climate states on exoplanets with the same atmospheric composition create different reflectance spectra, changing the detectability of atmospheric features and biosignatures, with seasonal variations on high-obliquity worlds adding time-dependent signals.
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Mars' triaxiality came from a tidal bulge raised by a synchronous moon Nerio whose orbit became unstable due to solar tides and a palaeo ocean, leading to its inward spiral, destruction during the LHB, and a spin adjustment that roughly matches Mars' current rotation.
citing papers explorer
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Impact of Climate States and Seasons on Future Exo-Earth Observations
Climate states on exoplanets with the same atmospheric composition create different reflectance spectra, changing the detectability of atmospheric features and biosignatures, with seasonal variations on high-obliquity worlds adding time-dependent signals.
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The demise of the synchronous moon that gave Mars its triaxiality. The role of solar tides and a palaeo ocean
Mars' triaxiality came from a tidal bulge raised by a synchronous moon Nerio whose orbit became unstable due to solar tides and a palaeo ocean, leading to its inward spiral, destruction during the LHB, and a spin adjustment that roughly matches Mars' current rotation.