NASA Extreme Environment Mission Operations (NEEMO), 美國宇航局極端環境任務行動/ 美國太空總署極端環境任務行動

The NASA Extreme Environment Mission Operations (NEEMO) 21 mission began on July 21 as an international crew of aquanauts splashed down to the undersea Aquarius Reef Base, located 62 feet below the surface of the Atlantic Ocean in the Florida Keys National Marine Sanctuary. The NEEMO 21 crew will perform research both inside and outside the habitat during a 16-day simulated space mission. During simulated spacewalks carried out underwater, they will evaluate tools and mission operation techniques that could be used in future space missions, including journeys to Mars. (Photo by Karl Shreeves/NASA)
The Day in Photos – July 31, 2016
http://avax.news/fact/The_Day_in_Photos_July_31_2016.html

NASA宇航員居住海底為登陸小行星做準備（組圖）-時政-美國中文網-

美國宇航局極端環境任務行動（Nasa Extreme Environment Mission Operations，簡稱Neemo）