About this showing of How the Universe Works
Scientists have discovered evidence of a mysterious ninth planet on the very edge of our solar system, could its moons support extra-terrestrial life.
Exact TV airing
How the Universe Works
Mystery Of Planet 9
This broadcast aired on Discovery .Science on Monday 17 August 2026, 00:00, ending at 01:00.
This airing has ended
This page records the exact Mon 17 Aug 2026 showing. For the next available broadcast, use the current How the Universe Works programme page.
Airing details
ChannelDiscovery .Science
StartsMon 17 Aug 2026, 00:00
EndsMon 17 Aug 2026, 01:00
Episode / edition: Mystery Of Planet 9
SkySky Q / Satellite167Next showing of How the Universe Works
The next currently listed showing is Mon 31 Aug 2026, 13:00 on Discovery .History.
See all current showingsOther current airings
Mon 31 Aug 13:00How the Universe Works
Curse Of The Cosmic RaysDiscovery .HistoryMon 31 Aug 14:00How the Universe Works
Curse Of The Cosmic RaysDiscovery .History+ 1Mon 31 Aug 19:00How the Universe Works
The Quasar EnigmaDiscovery .HistoryMon 31 Aug 20:00How the Universe Works
The Quasar EnigmaDiscovery .History+ 1Tue 1 Sep 00:00How the Universe Works
Curse Of The Cosmic RaysDiscovery .History
Curse Of The Cosmic RaysDiscovery .HistoryMon 31 Aug 14:00How the Universe Works
Curse Of The Cosmic RaysDiscovery .History+ 1Mon 31 Aug 19:00How the Universe Works
The Quasar EnigmaDiscovery .HistoryMon 31 Aug 20:00How the Universe Works
The Quasar EnigmaDiscovery .History+ 1Tue 1 Sep 00:00How the Universe Works
Curse Of The Cosmic RaysDiscovery .History