The Future of Interstellar Space

Bob Greene: A recent study suggests that alien contact could be achieved as early as 2029. He says Voyager 1 and Voyager 2 are continuing to travel through interstellar space, along with Pioneer 10,. Pioneer 11 and new horizons. And the spacecraft have communicated with the deep station network radio antennas in order to download scientific data and telemetry data. Greene: If there's intelligent life in the vicinity of the stars, aliens could potentially receive the signal and then make contact with Earth in about six years.