Some locals may be wondering if they were the only ones who witnessed an Unidentified Flying Object passing through the night sky this weekend. Residents of Jackson and Amador City reported seeing a large bright object that was neither a satellite nor a planet. Not to fear – it wasn’t alien -- it was American.  The sun was reflecting off the space shuttle Atlantis while it disembarked from the International Space Station. Atlantis undocked from the InternationalKennedy Space Center tomorrow. The Atlantis mission began February 7 and delivered the European Space Agency's Columbus laboratory to the space station. The mission also included three spacewalks, the delivery of a new crewmember to the station and the return of another astronaut after his nearly four month stay aboard the complex. Space Station at 1:24 a.m. Monday, ending its almost-nine-day stay at the orbital outpost. The Atlantis crew is expected to complete its 13-day mission with a landing at NASA's