Main content

Could UFOs visit Earth?

Dallas Campbell reads Britain’s real X-files held at the National Archives in Kew and asks what it would take for alien visitors to travel to Earth.

7 minutes

This clip is from

The Sky at NightWhat Have UFOs Done for Us?

More clips from What Have UFOs Done for Us?

See all clips from What Have UFOs Done for Us?(4)

More clips from The Sky at Night

See all clips from The Sky at Night(573)