1) Objects 2) Sightings 1) ET carriers, theoretically 2) ET craft 3) ET-piloted vehicles 4) Abduction sites, supposedly 5) Abductors in tabloids 6) Aerial anomalies 7) Aerial enigmas 8) Airborne anomalies 9) Alien bearers 10) Alien craft 11) Alien crafts 12) Alien fleet 13) Alien ships 14) Alien spaceships 15) Alleged Roswell sightings 
• Adamski, George (1891-1965) • Agrest, Matest M. (1915-) • Agrest, Mikhail M. • Air Technical Intelligence Center (ATIC) • Alencon Spaceman • alien abductio...