This July Sotheby's is commemorating the 50th anniversary of the first moon landing with two auctions: Space Exploration and Omega Speedmaster: To the Moon and Back, Celebrating 50 years since Apollo 11. Of the myriad technical and scientific achievements necessary to send humans into space, the suits and attire developed for adequate protection are as iconic as they are feats of engineering. The cost for a full suit could be as much as $1 million, while the time to compete them could be 5,000 hours. Ahead, discover the details behind spacesuits, watches, gloves and more in our upcoming sales, as well as a must-see series of photographs illustrating the extreme testing that went into the making of each suit. –Stephanie Sporn