NEEMO 16 aquanauts <a href="https://en.wikipedia.org/wiki/Timothy_Peake" class="extiw" title="en:Timothy Peake">Timothy Peake</a> (European Space Agency astronaut) and <a href="https://en.wikipedia.org/wiki/Steve_Squyres" class="extiw" title="en:Steve Squyres">Steve Squyres</a> (Cornell University astrophysicist) using iPads inside the Aquarius Reef Base underwater habitat.  Aquarius is owned by the National Oceanic and Atmospheric Administration (NOAA) and operated by the University of North Carolina–Wilmington (UNCW).  NASA photo in public domain.
NASA
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