About this showing of NASA's Unexplained Files
When astronomers discover a rogue black hole speeding through the Milky Way, they investigate how much danger this cosmic monster poses to Earth.
Previously on TV
NASA's Unexplained Files
The Black Hole Next Door
Previously shown on High Street TV 4 on Sun 13 Sep 2026 at 03:00.
This showing has ended
This showing was on High Street TV 4 at 03:00 on Sun 13 Sep 2026. See future airings below or open the main programme page for the latest TV times.
Airing details
ChannelHigh Street TV 4
StartsSun 13 Sep 2026, 03:00
EndsSun 13 Sep 2026, 04:00
Episode / edition: The Black Hole Next Door
Next showing of NASA's Unexplained Files
The next currently listed showing is Mon 14 Sep 2026, 23:00 on Discovery .Science.
See all current showings