Carl Sagan Institute Identifies 45 Earth-Like Planets in Habitable Zones, with 24 Additional Candidates

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Researchers from the Carl Sagan Institute at Cornell have identified 45 Earth‑like planets in their stars’ habitable zones where liquid water could exist, plus 24 more in a tighter region, including Proxima Centauri b, TRAPPIST‑1d/e/f/g, Kepler‑186f, and TOI‑715 b about 40 to 137 light‑years away, travel between these systems remains speculative but future propulsion could shorten the journeys, upcoming observatories such as the James Webb Space Telescope, the Nancy Grace Roman Space Telescope in 2027, and the Extremely Large Telescope in 2029 will sharpen observations, subsurface oceans on Enceladus and Titan in our own solar system are promising habitats, and scientists Lisa Kaltenegger and Gillis Lowry stress that these targets guide future exploration.