All that said, some are willing to put in a word for less likely planets, including tidally locked ones, where one side always faces the “sun” star and the other always faces the darkness (our Moon is like that in relation to Earth)News, “Former astronaut names planet he thinks most likely to have life” at Mind Matters News (February 26, 2022)
They are thinking that such planets may have habitable zones between the light side and the dark side.
Takehome: Chris Hadfield points to Kepler-442b as Earth-like but some researchers defend the possibility of life even on tidally locked planets, in “edge” zones.
You may also wish to read: How exoplanets have made the search for ET respectable. Recent years have seen a marked change from official skepticism to official curiosity, which includes more generous funding for the search. Even a top science journal, Nature, now sees false alarms simply as an opportunity to refine the search, currently focused on exoplanets.
Interstellar travel: The four top technologies for getting there. Astrophysicist Adam Frank looks at the technologies we meet in science fiction and identifies the challenges that hold them back. In a world where technology must confront fundamental physics, what are the chances and obstacles for cryosleep, light sails, wormholes, and warp drives?