Cosmic Journeys - Day of the Asteroid
178
5
4,438 مناظر·
05/20/16
میں
Discovery
Asteroids racing through the solar system have smashed into Earth before. What are the chances we ll get hit again? Armed with new defensive technologies, scientists are getting ready for the day, a decade, century from now: the Day of the Asteroid.
مزید دکھائیں
0 تبصرے
sort ترتیب دیں
