Astronomers have begun searching for exoplanets – planets orbiting stars at distances where liquid water could exist ...
The United States government keeps extensive records of UFO sightings; other countries tend to keep more limited ...
Astronomers have used powerful radio telescopes since 1960 to search for alien signals that might provide evidence ...
Area 51 has long been at the heart of alien fan theories and UFO hunting enthusiasts’ beliefs ...
If there is extraterrestrial life out there, they could possibly communicate with us via radio signals. These ...
Astrobiologists investigate exoplanets in order to detect evidence of life. Unfortunately, however, this approach misses many opportunities ...
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