Scientists want to know if life exists in what are known as the Goldilocks zones around the sun's stellar neighbors. How long would getting there take?
We already know there's at least one planet out there, so it's hard to resist looking for life.
Knowing what we haven't found can help scientists see what they could still be missing.
Scientists showed the potential habitability of the planet under different atmospheric conditions and orbits using a state-of-the-art model.