Is life possible on a planet orbiting a Red Giant star?

Because of this, stellar bodies in the later stages of the evolutionary process are much lower down the pecking order in the search for life. The habitable zone of a star is the region in which a rocky planet can orbit and maintain liquid water on its surface. read more

It’s possible for a planet to be habitable if it orbits at a suitable distance. At that distance, it will receive enough light from its star to make water liquid. But it may not last very long in that phase. read more

Consequently, any planet orbiting a red dwarf would have to have a low semimajor axis in order to maintain Earth-like surface temperature, from 0.3 astronomical units (AU) for a relatively luminous red dwarf like Lacaille 8760 to 0.032 AU for a smaller star like Proxima Centauri, the nearest star to the Solar System. read more