16. The Night Side of Exoplanets
Many exoplanets orbiting close to their stars are tidally locked, always showing the same face to their sun. This creates a stark contrast between a scorching day side and a frigid, perpetual night side. Scientists speculate that unique forms of life could evolve to survive on the dark side, adapting to different temperatures and chemical processes. Studying these extremes helps broaden our understanding of habitability beyond Earth-like conditions. Read more at Nature.