Gallery: Astronauts Explore Undersea 'Asteroid'
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Astronauts Shannon Walker And Steve Squyers Collect Samples
Shannon Walker collects samples and stores them in her side pouch while her feet are secured to foot restraints on a large boom. Steve Squyers assists by maneuvering her on the boom.
Neemo 15 Science Team
The NEEMO 15 science team poses for a photo in front of the DeepWorker submarines. The team members represent multiple NASA centers, several government agencies, research organizations, and academia.
NASA NEEMO 15 Diver - Engineering Test
A NEEMO engineering crew diver simulates anchoring to an asteroid surface.
NEEMO 15 Simulated Asteroid Surface
A diver anchoring to a simulated asteroid surface created for NASA's underwater NEEMO 15 mission.
NEEMO 15 Crew At the End of Their Shortened Mission
Four members of the NEEMO 15 crew are pictured after they were forced to return to the surface on Oct. 26, 2011, six days ahead of schedule, due to safety concerns surrounding Hurricane Rina. From left to right: Japanese astronaut Takuya Onishi, Canadian astronaut David Saint-Jacques, NASA astronaut Shannon Walker, and planetary scientist Steve Squyres.
Breaking space news, the latest updates on rocket launches, skywatching events and more!

Space.com is the premier source of space exploration, innovation and astronomy news, chronicling (and celebrating) humanity's ongoing expansion across the final frontier. Originally founded in 1999, Space.com is, and always has been, the passion of writers and editors who are space fans and also trained journalists. Our current news team consists of Editor-in-Chief Tariq Malik; Editor Hanneke Weitering, Senior Space Writer Mike Wall; Senior Writer Meghan Bartels; Senior Writer Chelsea Gohd, Senior Writer Tereza Pultarova and Staff Writer Alexander Cox, focusing on e-commerce. Senior Producer Steve Spaleta oversees our space videos, with Diana Whitcroft as our Social Media Editor.
