In the time that is inactive, your PC works to analyze signals received by the world largest radio telescope. The challenge, find evidence of extraterrestrial intelligence and demonstrate at last that we are not the only inhabitants of the universe; the award, being co-author of the most important discovery in history. Listen to the stars is one of the major unresolved issues of humanity if we are alone in the universe. What you know by scientific advances is the size and distances between galaxies, stars and planets in the known universe. These are of such magnitude that communicate with another planet (eventually) inhabited, and not to mention traveling to, it becomes very difficult with current technology. Only remains a possibility to communicate with other civilizations: listen to the space. Put the ear, in the form of huge radio telescopes to the sky to see if we receive the signal of some form of intelligent life.
Among the projects dedicated to find intelligent life far from Earth, are numerous known as radio SETI (abbreviation of Search for Extra Terrestial Intelligence), which used radio telescopes to capture radio signals from outside. In 1960 the astronomer Frank Drake was the first to use radio waves to look for intelligent space life. Since then, both the former USSR and USA put the view in the sky. Some projects born in the 70’s still underway, as the META project of the Planetary Society or SERENDIP, of the University of California. After a decade of preliminary studies NASA devised his own SETI project on a large scale in 1988. Space observations began in 1992, but only a year later Congress canceled funding, so the Institute Seticomputacion distributed, that is, distribute the work among several computers connected in network. With the advent of the Internet, multiplied the possibilities to use lots of computers to solve a single task.