During the 70s, top scientists and astronomers sent coded messages into space with the hopes of getting a response from an extraterrestrial civilization; what they didn't anticipate was a speedy reply and an uptick in sightings around the world.
2024
1956
2018
2016
2019
2015
2004
1980
2014
2002
2003
1977
2011
1979
1994
2022
1992
1996