Sentences with phrase «terrestrial planets exist»

Not exact matches

The discovery is remarkable because the debris appears to be rocky and suggests that terrestrial planets like Tatooine — Luke Skywalker's home world in Star Wars — might exist in the system.

NASA is particularly interested in identifying planets one half to twice the size of Earth — terrestrial planets rather than the gas or ice giants or hot - super-Earths in short period orbits that evidence suggests exist in large numbers — especially ones that are located in the habitable zone of their stars.

The frequency of occurrence of such terrestrial planets is one of the variables in the Drake equation which estimates the number of intelligent, communicating civilizations that exist in our galaxy.

It speaks to the very heart of trying to understand how life may have evolved not just on earth but on other terrestrial bodies both in our own solar system and indeed around other stars that have planets that lie in the so - called «habitable zone» (where liquid water can exist on the surface).