Aliens might have received signals sent by NASA, though it could take them nearly 27 years to reply
Image Credit: national geographic
It's possible that aliens have read one of Earth's ‘is anybody out there?’ messages, but experts predict it will take them 27 years to respond. Space is so vast that it takes light years to send and receive messages, slowing down humankind's search for extraterrestrial life. In an effort to elicit a response from intelligent alien life, NASA's Deep Space Network is a global network of radio dishes that has sent radio signals to remote regions of the Solar System.