Keep up to date with every new upload!

Join free & follow Planetary Radio: Space Explora
  • 1 year ago
Happy Asteroid Day!

Happy Asteroid Day!

Asteroid Day, June 30th, marks the anniversary of the great Tunguska impact that leveled a Siberian forest. It reminds us that a Near Earth Object can destroy a city or even a civilization. Former Minor Planet Center Director Tim Spahr reviews our efforts to find and understand these bodies.