Comets, Asteroids, and NASA Blunders

Kevin Lea stands face to face with the NASA scientist in charge of getting material from a comet to earth (Stardust). Kevin's predictions were right, and the NASA scientist was wrong. Six years ago, the NASA scientist ignored Kevin's warning about redirecting an asteroid (DART), and now a boulder storm is headed toward earth.
(See 22:15 and 31:45)