غالبا قيل ذلك بسبب اشارة الراديو والتفلزيون الخاص بنا التي تشع في الفضاء لـ 80 سنة حتى الآن,
It's often said that the because our radio and television signals have beamed into space for 80 years now, aliens should have figured out that we're here and have sent us a message.