(S01EP06) Learn about the silent, speedy objects that thousands of people, including scientists and government officials, saw hovering in this country's skies. Look at eyewitness photos that captured this incredible two-year-long mass sighting.

Commentaires

Si vous aimez cette émission, vous aimerez sûrement celles-ci :

• Sunshine & Secrets: The Hidden Side of IVF
• Steve backshall's royal arctic mission
• The Number On Great-Grandpa's Arm