太阳系的自由落球
2021年8月25日 Solar System Ball Drop Video Credit & Copyright: James O’Donoghue (JAXA) & Rami Mandow (Space Australia); Text: James O’Donoghue Explanation: Does a ball drop faster on Earth, Jupiter, or Uranus? The featured animation shows a ball dropping from one kilometer high toward the surfaces of famous solar system bodies, assuming no...