hunt for e.t?

a new project backed by mark zuckerbury-facebook founder-to send tiny starships to hunt for aliens at the cost of 70 million .a laser fired from earth as it sails on the craft to nearest star system alpha centauri a mere 3.37 light years away .the craft the size of a phone mircochip may get  there in 20 years and a current spaceship could take 30,000 years.