To test which was correct, astronomers led by Douglas Clowe of the University of Arizona turned their telescopes on the cloud in the bullet cluster.

• 为了证明哪一种说法正确，在亚利桑那大学的道格拉斯.；克洛的带领下，天文学家们将他们的望远镜瞄准了子弹星云团的云。