Alien Civilizations , Could Contact <br />Earth by 2029, Study Suggests.<br />'Popular Science' reports that scientists have recently <br />attempted to determine which distant stars could <br />have intercepted Earth-based radio transmissions.<br />For over 100 years, <br />Earth has been beaming <br />radio waves across the planet.<br />In recent years, humans have sent even <br />stronger signals out into space to contact <br />distant probes like the Voyager spacecraft.<br />Those transmissions will eventually reach <br />distant stars and the planets that surround <br />them, which could potentially host alien life.<br />According to a paper published in the journal 'Publications <br />of the Astronomical Society of the Pacific,' Earth could <br />receive a response to those transmissions as soon as 2029.<br />This is a famous idea from <br />Carl Sagan, who used it as <br />a plot theme in the movie 'Contact.', Howard Isaacson, co-author and astronomer at the <br />University of California, Berkeley, via 'Popular Science'.<br />Transmissions are sent to probes at the edge of our <br />solar system by NASA's Deep Space Network <br />(DSN), a world-spanning network of radio dishes. .<br />According to the team behind the paper, <br />a signal sent to Pioneer 10 reached a white dwarf <br />star about 27 light-years away in 2002.<br />According to the team behind the paper, <br />a signal sent to Pioneer 10 reached a white dwarf <br />star about 27 light-years away in 2002.<br />A return message from <br />that solar system could reach <br />Earth no sooner than 2029.<br />Other transmissions sent to Voyager 2 <br />in 1980 and 1983 could receive a response<br />sometime in the early 2030s.
