The Hercules Text
Jack McDevitt
 The story emphasizes the various characters' reactions to the event, according to their specific scientific background. For example a priest's speculations on the implications for religion, a psychologist's theorizing about the aliens' psyches, the scientists' consideration of the implications of the new knowledge for their own specialties, and the president's concern for the implications for national defense. The novel is set in an ongoing Cold War scenario. Unlike other First Contact stories, there is no dialogue between the senders of the message and mankind, as the received radio signals have travelled through space for several thousand years. The message is received with a large radio telescope, the fictional Hercules Array, which was built on the far side of the Moon. It is later discovered, that the message was sent with an artificial Pulsar built by the alien race. This pulsar with the name Althea has been known by the scientists for years. It was believed to be a normal pulsar. However, what made it special was its almost perfectly regular interval between the observed pulses. One day some of the pulses suddenly fail to appear. This incident draws more attention to this particular pulsar, as the newly discovered gaps show a remarkable pattern. The first gap consists of one missing pulse, the second of two missing pulses and the third gap consists of four missing pulses. The following gaps also consist of numbers representing powers of 2 (2, 4, 8, 16, 32, 64, 128, ...). The transmission of these numbers goes on for a couple of days until the pulsar falls completely silent. The silence lasts for several weeks until it breaks again. This time, not just a simple sequence of numbers is received by the Hercules Array. Now, a very large and complex amount of binary data is sent from somewhere close to Althea. Scientists are able to decipher this data. It consists of several mathematical and physical formulae and simple graphical information. Later, more complex information is found, e.g., parts of the sender's DNA, schematics for very advanced technology, philosophical texts or poems. Jack McDevitt addresses a couple of questions which are likely to arise if mankind should receive a message of extraterrestrial origin someday. The protagonists discuss the possible impacts on mankind following the announcement of the receipt of the message. * How would religious groups react upon coming to know of a second creation? * How would the proven existence of extraterrestrial life affect our daily life and culture? * What would be the reaction of people who do not believe in the authenticity of the message? The deciphered message contains a lot of information about advanced technology. How do people deal with this newly discovered advanced knowledge? * What ideas on using it do scientists, politicians, and the military have? * Would mankind be prepared for the great responsibility that would come together with this powerful technology? * How risky would it be for mankind to play with these totally new and not yet fully understood technologies?