Season 52 Episodes18
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Ranked #5 of 16 in Season 52•matches the season avg
Scientists genuinely don't know what most of our universe is made of. The atoms we're made from only make up four per cent. The rest is dark matter and dark energy (for 'dark', read 'don't know'). The Large Hadron Collider at CERN has been upgraded.
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"Dancing in the Dark - The End of Physics?" is episode 9 of Horizon season 52. It scored 7.4/10 from 30 votes, ranking #5 of 16 episodes this season (season average 7.4). It aired on March 17, 2015.