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Mars as an Exoplanet: Lessons from a Planet at the Edge of Habitability

  • Authors: Stephen R. Kane, Paul K. Byrne, Skylar D'Angiolillo, Michelle L. Hill, Emma L. Miles, David A. Brain, Shannon M. Curry, Joana R.C. Voigt

Stephen R. Kane et al 2026 The Planetary Science Journal 7 .

  • Provider: AAS Journals

Caption: Figure 2.

Planetary-mass and radius data for those confirmed exoplanets that have measurements extracted for both properties, extracted from the NASA Exoplanet Archive on 2025 December 31. The data are color coded in proportion to the flux received from their host stars. The solar system terrestrial planets are shown as stars. The shaded region indicates the sub-Earth regime, defined as Mp < 1 M and Rp < 1 R.

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