Is There Life On Other Planets?
Is There Life On Other Planets?
The ultimate goal of NASA’s exoplanet program is to find unmistakable signs of current life on a planet beyond Earth. How soon that can happen depends on two unknowns: the prevalence of life in the galaxy and how lucky we get as we take those first, tentative, exploratory steps.
Could there be life on other planets? Did life come to Earth from space? Have we already found evidence that aliens exist?
