The International Space Station about to transit the moon.  Commanded by NASA astronaut Peggy Whitson on her way to setting a record for the most time in space by a U.S. astronaut.  The ISS was 303 miles from the imaging location and traveling at 17,500 mph.  Gear: Canon EOS 5D Mark IV, 600mm f/4L IS II, 2X Extender III, ISO 3200, 1200mm, ƒ/8, 1/1600.  Photographed near Leesburg, Virginia.