About this programme
Scientists have discovered evidence of a mysterious ninth planet on the very edge of our solar system, could its moons support extra-terrestrial life.
Programme listing
How the Universe Works
Mystery Of Planet 9
Channel
Discovery .Science
Discovery .Science
Starts
Fri 6 Nov 2026, 02:00
Fri 6 Nov 2026, 02:00
Ends
Fri 6 Nov 2026, 03:00
Fri 6 Nov 2026, 03:00
Category
News & Documentary
News & Documentary
When is How the Universe Works next on TV?
How the Universe Works is on now on Discovery .Science and ends at 03:00.
What channel is How the Universe Works on?
The next showing is on Discovery .Science.
Is How the Universe Works on TV tonight?
Yes — it is on tonight at 16:00 on Discovery .Science, ending at 17:00.
Know when it’s back on
Create a free TVGuideUK account and set reminders for How the Universe Works, series links and favourite channels — handy when you found us by searching what time it’s on.
What channel?
Discovery .Science
Discovery .Science
Start time
02:00
02:00
Ends
Fri 6 Nov 2026, 03:00
Fri 6 Nov 2026, 03:00
Channel numbers
SkySky Q / Satellite167Channel numbers may vary by region, package or device.
Other airings
Fri 23 Oct
08:00How the Universe Works
Mystery Of Planet 9Discovery .ScienceFri 23 Oct
09:00How the Universe Works
The Universe's DeadliestDiscovery .ScienceFri 23 Oct
10:00How the Universe Works
Black HolesDiscovery .ScienceFri 23 Oct
13:00How the Universe Works
Battle Of The Dark UniverseDiscovery .HistoryFri 23 Oct
14:00How the Universe Works
Battle Of The Dark UniverseDiscovery .History+ 1Fri 23 Oct
19:00How the Universe Works
The Moons Of SaturnDiscovery .HistoryFri 23 Oct
20:00How the Universe Works
The Moons Of SaturnDiscovery .History+ 1Sat 24 Oct
00:00How the Universe Works
The Moons Of SaturnDiscovery .HistorySat 24 Oct
01:00How the Universe Works
The Moons Of SaturnDiscovery .History+ 1Sat 24 Oct
14:00How the Universe Works
Stars That KillDiscovery .ScienceSat 24 Oct
15:00How the Universe Works
Secret History Of PlutoDiscovery .ScienceSat 24 Oct
18:00How the Universe Works
When NASA Met JupiterDiscovery .History
08:00How the Universe Works
Mystery Of Planet 9Discovery .ScienceFri 23 Oct
09:00How the Universe Works
The Universe's DeadliestDiscovery .ScienceFri 23 Oct
10:00How the Universe Works
Black HolesDiscovery .ScienceFri 23 Oct
13:00How the Universe Works
Battle Of The Dark UniverseDiscovery .HistoryFri 23 Oct
14:00How the Universe Works
Battle Of The Dark UniverseDiscovery .History+ 1Fri 23 Oct
19:00How the Universe Works
The Moons Of SaturnDiscovery .HistoryFri 23 Oct
20:00How the Universe Works
The Moons Of SaturnDiscovery .History+ 1Sat 24 Oct
00:00How the Universe Works
The Moons Of SaturnDiscovery .HistorySat 24 Oct
01:00How the Universe Works
The Moons Of SaturnDiscovery .History+ 1Sat 24 Oct
14:00How the Universe Works
Stars That KillDiscovery .ScienceSat 24 Oct
15:00How the Universe Works
Secret History Of PlutoDiscovery .ScienceSat 24 Oct
18:00How the Universe Works
When NASA Met JupiterDiscovery .History
Previous TV airings
Selected past broadcasts with their original date, time and channel details.
Fri 23 Oct 2026
00:00How the Universe Works
Voyager's Ultimate MissionDiscovery .HistoryThu 22 Oct 2026
20:00How the Universe Works
Voyager's Ultimate MissionDiscovery .History+ 1Thu 22 Oct 2026
19:00How the Universe Works
Voyager's Ultimate MissionDiscovery .HistoryThu 22 Oct 2026
14:00How the Universe WorksDiscovery .History+ 1Thu 22 Oct 2026
13:00How the Universe WorksDiscovery .History
00:00How the Universe Works
Voyager's Ultimate MissionDiscovery .HistoryThu 22 Oct 2026
20:00How the Universe Works
Voyager's Ultimate MissionDiscovery .History+ 1Thu 22 Oct 2026
19:00How the Universe Works
Voyager's Ultimate MissionDiscovery .HistoryThu 22 Oct 2026
14:00How the Universe WorksDiscovery .History+ 1Thu 22 Oct 2026
13:00How the Universe WorksDiscovery .History