NASA ScienceCasts: The International Asteroid Hunt
17 هزار بار بازدید -
6 سال پیش
-
A coordinated effort is being
A coordinated effort is being made by many nations around the world to detect and track near-Earth objects, such as asteroids.
NASA Science: http://science.nasa.gov/
NASA Science: http://science.nasa.gov/
6 سال پیش
در تاریخ 1397/04/09 منتشر شده
است.
17,007
بـار بازدید شده