Is There Life in Outer Space?

In the third book in the Marvelous But True series, astronomer Carl Sagan explores his quest for extraterrestrial life. In the 1970s, Sagan used NASA's Voyager program to send satellites to the back of the solar system. He launched various sounds and images from Earth into space, hoping to receive a response from extraterrestrial life. The satellites are still in space, collecting valuable data, and NASA predicts they can make contact with them through 2025. This explores the mystery of how Sagan managed to reach the back of the solar system and the possibility of life in outer space.