Targeting nearby red dwarfs could guide a real 'Hail Mary' interstellar mission

A new study in Monthly Notices of the Royal Astronomical Society narrows 45 exoplanets most likely to host life and argues that focusing on smaller, cooler red dwarfs increases the chance of finding habitable worlds. It highlights TRAPPIST-1 and Proxima Centauri as compelling nearby targets (the latter only 4.25 light-years away; the former with seven rocky planets in its habitable zone), while TOI-715 sits farther at about 139 light-years. The researchers also note 24 “planets on the edge” whose potential for life may not require Earthlike liquid water. Tau Ceti is unlikely to host habitable planets, but the study’s framework suggests where to send a hypothetical interstellar probe, echoing themes from Project Hail Mary and encouraging creative search strategies.