1. Dr. Lisa Randall Dark Matter and the Dinosaurs: The Astounding Interconnectedness of the Universe
b'
The renowned Harvard cosmologist and theoretical physicist explores a scenario in which a disk of dark matter\\u2014the elusive stuff in the universe that interacts through gravity like ordinary matter, but that doesn\\u2019t emit or absorb light\\u2014dislodged a comet from the Oort cloud that was ultimately responsible for the dinosaurs\\u2019 extinction. Dr. Lisa Randall teaches us an enormous amount about dark matter, our Universe, our galaxy, asteroids, and comets\\u2014and the process by which scientists explore new concepts.
'