Mantles of giant clams in Kingman Reef, Pacific Ocean (© Brian J. Skerry/Getty Images)

International space station over the Pacific Ocean (© StockTrek/White/Photolibrary) ©

Sunset over the Pacific from the International Space Station -- NASA - digital version copyright/Science Faction/Corbis ©

Deepwater mushroom soft coral (Anthomastus ritteri) off the coast of California, in the Pacific Ocean -- Mark Conlin/Photolibrary ©

Waves of water meet waves of sand on the beach of the Pacific ocean near Paracas, Peru -- George Steinmetz/Corbis ©