Prioritizing 45 Rocky Exoplanets in Habitable Zones for Biosignature Searches and Future Observations

To the point

Researchers produced a prioritized catalog of 45 rocky exoplanets in the habitable zones as the best places to search for life, using Gaia data and NASA’s Exoplanet Archive to select worlds no larger than about twice Earth’s radius, with 24 in a stricter region, ranking them by observability and their ability to test habitability (including eccentric orbits) with instruments like the Extremely Large Telescope and LIFE, noting familiar targets such as TRAPPIST-1 d,e,f,g, Proxima Centauri b, and LHS 1140 b while many lesser‑known worlds also stand out; uncertainties in stellar data could push the pool to 54 or 73, and the study frames the list as a strategic guide for next‑generation missions rather than merely a discovery catalog.