The researchers modeled a theoretical Earth into binary star systems, those with two stars, and found that 87 percent of these "exo-Earths" should have its axis tilted similar to that of Earth, an important ingredient for intelligent life.
Abacwaningi bakhe isibonelo soMhlaba esifunda ngawo kumasistimu ezinkanyezi ayimbaxa, bathola ukuthi amaphesenti angu-87 ala ma-"exo-Earths" kufanele abe nezindawo ezithe ukutsheka ezifana noMhlaba, okuyisici esibalulekile sempilo yangempela. 