"There's something very intriguing going on with that that we don't understand yet," said study lead author Brian Anderson, a space physicist at Johns Hopkins University Applied Physics Laboratory.

“有一些有趣的事情在发生，而我们还不能理解。”约翰·霍普金斯大学应用物理实验室的空间物理学家，该研究的主要作者Brian Anderson说。

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Rob Gold, from the Johns Hopkins Applied Physics Laboratory, was also watching outside the mission-control center.

NPR: NASA Probe Glimpses Unseen Side of Mercury

Johns Hopkins University's Applied Physics Laboratory, a leading space research center, recently conducted feasibility studies into junk-zapping lasers and garbage-collecting rockets.

WSJ: A Cosmic Question: How to Get Rid Of All That Orbiting Space Junk?

The mission operations centre is the John Hopkins University Applied Physics Laboratory.

BBC: At a glance: Asteroid touchdown