Dr. Megan Bruck Syal joins Tim to talk about something that until now was just the stuff of science fiction and Hollywood movies…defending Earth against deadly collisions with asteroids and comets. Megan is a planetary defense investigator at the Lawrence Livermore National Laboratory. She and a large team of scientific experts are actively working to establish ways to prevent an asteroid from making impact with earth and threatening life as we know it.
Seth Shostak joins Tim to talk about the serious scientific search for intelligent life beyond Earth. Seth is the senior astronomer at the SETI Institute, which was created by NASA and is located in Silicon Valley. It is dedicated to the search for life beyond Earth. In this episode, Seth talks about what we’re learning about the potential for finding intelligent life, not only within our solar system, but well beyond it.