By Anthony Zurcher
For weeks, researchers have been speculating about a string of bizarre readings from a star called KIC 8462852. Throughout a monitoring period of four years, the star’s light had fluctuated and dimmed in dramatic fashion. These odd signals baffled astronomers, and many had even suggested alien life as a possible explanation. However, recent observations are now leading to the theory that the irregular dips in light were in fact caused by comets. Nonetheless, as suggested by senior astronomer Seth Shostak, the unraveling of this mystery does not rule out intelligent life in other parts of the universe. The galaxy holds over a trillion planets, and scientists estimate one in ten may have a world capable of supporting life.