Interpretations of extraterrestrial life in the 21st century have expanded beyond traditional depictions like green Martians and Grays to include sentient beings that visit Earth to share knowledge.

Authors

• Person: Not available Organization: PBS
  Alien Abduction and UFOs: Why Are Grays So Common? | Season 4

Sources

• Alien Abduction and UFOs: Why Are Grays So Common? | Season 4 www.pbs.org PBS via serper

Referenced by nodes (1)

• extraterrestrial life concept