"Black-out" by Joseph Farrell is a science fiction story published in the early 1940s, originally featured in the magazine "Planet Stories". The narrative explores themes of desperation and the search for salvation amid the decline of a dying civilization on Mars. Through the eyes of Thak, the last astronomer of Mars, the story delves into the hope of contacting intelligent life on Earth, which represents the last glimmer of hope for his race. The storyline centers around Thak and his students as they construct a new telescope to observe signals from Earth. Thak believes that the lights he has seen on Earth are evidence of intelligent civilization, capable of providing the knowledge and guidance needed to save the remnants of Martian society. However, as they finally focus the telescope on the blue planet, despair overwhelms Thak when he realizes that the lights are disappearing one by one, indicating a catastrophic blackout that hints at the extinction of life on both Mars and Earth. The story effectively captures the longing for connection and the tragic inevitability of loss as two worlds face extinction. (This is an automatically generated summary.)