Distant suns covered in dark spots could shape the search for life

Astronomers created StarryStarryProcess, a model mapping star spots on distant suns using transit light curves from NASA missions. This technique improves understanding of stellar properties, enhancing exoplanet atmosphere and habitability assessments. By considering stars' complex surfaces instead of uniform disks, researchers can accurately interpret data on water vapor and other habitability indicators. The model, tested on the TOI 3884 system, will support NASA's Pandora mission in differentiating between stellar and planetary signals in atmospheric observations.