Astronomers suggest 'Terminator zones' on distant planets may support life.

Astronomers at the University of California, Irvine, have found that exoplanets in the "terminator zone," the ring-shaped border between the permanent day and night regions of planets, could support extraterrestrial life. The researchers used climate modeling to show that planets with a lot of land in the terminator zone could retain liquid water, making them habitable. This finding expands the options for life-hunting astronomers and will inform future efforts to identify habitable planets.