Tom Durkin, Deputy Director of NASA South Dakota Space Grant Consortium discusses the "credible possibility" of a massive new planet in our solar system as well as early findings from the New Horizons spacecraft exploration of Pluto.
Tom Durkin, Deputy Director of NASA South Dakota Space Grant Consortium discusses the "credible possibility" of a massive new planet in our solar system as well as early findings from the New Horizons spacecraft exploration of Pluto.