Why would NASA hide this astronaut's terrifying story? Leroy Chio, an American astronaut who served as the International Space Station's commander for six months in 2005, has stated on record that it would be the height of conceit to think that we are the only species operating in the stars. He was working on the International Space Station, 230 miles above the planet, installing antennas and radio gear when he saw something that puzzled him. He claimed to have seen a line of lights that were arranged like an upside down night's wish, even though he was an experienced astronaut. I saw them all fly by, and I thought it was rather unusual, he told the press. What was it that Chio might have seen up there? And why was it so difficult to explain?