European Space Agency astronaut and NEEMO 16 aquanaut <a href="https://en.wikipedia.org/wiki/Timothy_Peake" class="extiw" title="en:Timothy Peake">Timothy Peake</a> during training week for the NEEMO 16 underwater exploration mission. NEEMO 16 is being conducted from June 11-22, 2012, at the Aquarius Reef Base underwater laboratory off Key Largo, Florida. NASA photo in public domain.
NASA
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