Aliens are making their presence scarce on Earth, so we decided to go after them. We didn't go empty-handed, but with best wishes, conveyed in the sweet Romanian tongue. NASA has revealed the messages sent into deep space decades ago, on board the "Voyager 1" probe. Among dozens and dozens of greetings, there's one in Romanian too. The friendly voice that sounds familiar belongs to a Romanian who served under three American and two French Presidents.