NEW : An FAA notice says airspace around the base will close part of Wednesday . The closure is expected to last for about an hour, according to a statement from the Federal Aviation Administration. Air Force says mission of X-37B is to demonstrate technologies . It is lifted into space by United Launch Alliance 's Atlas V rockets . Speculation abounds about secret weapons , spying .
NEW : An FAA notice says airspace around the base will close part of Wednesday . The closure is expected to last for about an hour, according to a statement from the Federal Aviation Administration. Air Force says mission of X-37B is to demonstrate technologies . Speculation abounds about secret weapons , spying .