Check out this video from Astronomy reader Robert Massey of Fort Worth, Texas. Look to the top left of the grouping of four bright stars, at about the 11 o’clock position. A blob appears to move to the left. The video shows an object — a satellite or perhaps an asteroid? — tumbling through the field of view of Massey’s Meade 12-inch LX200 telescope. At the time he was observing M42, the Orion Nebula. In his own words: “I have been behind a telescope...