The final episode of Professor Brian Cox's Forces Of Nature revealed how Earth's beauty is created by just a handful of forces.
He explained the science behind the colours of the planet in captivating detail.
-- BBC One (@BBCOne) July 24, 2016
Viewers went particularly nuts when he presented a portion of the show underwater, addressing the camera through scuba gear.
All nature documentaries should henceforth be presented underwater. #forcesofnature
-- Niecy O'Keeffe (@NiecyOKeeffe) July 25, 2016
-- Ant (@Ant_Hogan) July 25, 2016
Brian Cox just taught me why water is blue in less that 30 seconds, something secondary school failed to do in 5 years. ?? #ForcesOfNature
-- Brad (@spanishturnip) July 25, 2016
PBC managing to explain very clearly why the sea is blue while struggling to breathe 12m under water. #ForcesofNature
-- Tim Long (@tim_w_long) July 25, 2016
-- Alan Winfield (@alan_winfield) July 25, 2016
However, some viewers did think the scuba gear made Brian's voice sound eerily familiar.
-- Neil Cater (@caterneil) July 25, 2016
Watching #forcesofnature. Slightly distracted by Brian Cox sounding like Frank Sidebottom whilst taking in his diving suit.
-- Mayor Goldie Wilson (@TheJudderman000) July 25, 2016
Underwater, Prof Brian Cox sounds a bit like like Frank Sidebottom #ForcesOfNature is really fantastic (it really is)
-- Mrs Davison (@Mrs_Dav_I_Son) July 25, 2016
-- Lord Beestonia (@Beeestonia) July 25, 2016
Cold water diving in Iceland has turned Prof Brian Cox into Frank Sidebottom #ForcesOfNature
-- Mark Rae (@MarkTRae) July 25, 2016
-- Dan! (@DrJagz) July 25, 2016
As amazing as this dive sequence is, Brian Cox sounds like Frank Sidebottom in all that gear. #ForcesOfNature
-- Mick Convey (@nalaknip) July 25, 2016
Either way, the programme was certainly a hit.
Never keener on photosynthesis than when Brian Cox is explaining it... #forcesofnature
-- Kelly (@KellyChavezy) July 25, 2016
-- Ross Mullan (@rossatron8) July 25, 2016
-- Ian Craig (@droginexile) July 25, 2016
-- Natasha Lopez (@natasha_witch) July 25, 2016
-- Verity S (@veritystockdale) July 25, 2016
Shots of the magnificent Northern Lights in Iceland and a family that chase them were a particular hit.
I love the fact the self-declared Northern Lights addicts have called their daughter Aurora #ForcesOfNature
-- Emma Pryer (@EmmaTalkTV) July 25, 2016
-- Tania Esteban (@Eagletigger) July 25, 2016
-- Emma (@EmmaBottrill) July 25, 2016
-- Micky Bird (@Mickybirdman) July 25, 2016
Brian even found a feline fan.