Scientists are refining models to identify which distant planets could harbor life, using new calculations on size limits, atmospheric polarization, and stellar weather effects. Research shows that habitability depends on factors ranging from a planet's minimum dimensions to radiation from black holes and stellar activity.
·New models establish lower size thresholds for exoplanets capable of supporting habitable conditions
·Polarization measurements help refine calculations for the proposed Habitable Worlds Observatory mission
·Stellar space weather and radiation events significantly impact whether distant planets remain habitable
·Supermassive black holes can strip habitability from exoplanets even at vast distances
·Machine learning approaches are improving predictions of photosynthetic potential on alien worlds
drawn from Encyclopedia Britannica, Astrobiology Web, Universe Today, EarthSky · updated 5d ago