So far, scientists have discovered more than 5 thousand planets outside our solar system, and among these planets, there are only 50 planets that orbit their stars at an appropriate distance, or the so-called habitable zone – just like Earth and its distance from the sun – which is the region in which water exists in the liquid state.
These planets are not so close to their stars that the temperatures rise so severely that the water evaporates, nor so far away that they make them so cold, so the temperatures drop and the water freezes on their surface.
Recently, a team of astronomers from the Max Planck Institute for Astronomy (MPIA) in Germany discovered a (red dwarf star) they called “Wolf 1069”, which is a type of small star that is relatively cool compared to the sun.
