Click above to listen to part 4 of Space Rocks!, featuring Avi Loeb, professor of Science at Harvard and chair of the Department of Astronomy, suggesting that an extra-solar object named ‘Oumuamua may not be either asteroid nor comet, but instead an alien artifact.
Space Rocks!:
Part 1: Roger Launius / Space Exploration
Part 2: J.L. Galache / Asteroid Mining
Part 3: Mark Showalter / Ultima Thule
Part 4: Avi Loeb / ‘Oumuamua Or…?







