This week's Question: During a panel discussion last week, NASA scientists indicated that we may be a generation away from finding alien life — even if that life is a microorganism and not an alien civilization. "We're going to have strong indications of life beyond Earth within a decade, said chief scientist Ellen Stofan.”I think we're going to have definitive evidence within 20 to 30 years." NASA scientists have found evidence of water on a number of celestial bodies, including the dwarf planet Ceres and Jupiter’s moon Europa. What do you think? Will we discover alien life by 2025?