Sorry, this episode is not currently available

How Small is the Universe?

Horizon, 2012-2013 Episode 5 of 18

Horizon plunges down the biggest rabbit-hole in history in search of the smallest thing in the Universe.

It is a journey where things don't just become smaller but also a whole lot weirder. Scientists hope to catch a glimpse of miniature black holes, multiple dimensions and even parallel Universes. As they start to explore this wonderland, where nothing is quite what it seems, they may have to rewrite the fundamental laws of time and space.

59 minutes

Last on

Thu 21 Feb 2013 20:00


Role Contributor
DirectorToby Macdonald
ProducerToby Macdonald
Series EditorAidan Laverty

Can video games be good for you?

Hands on a video game controller

There is a growing body of evidence showing that playing video games could be good for us

Are we all “a little bit” OCD?

GettyImages-477228523-2 copy.jpg

Discover the truth about the frequently misunderstood condition

Heart Attack Risk Calculator


Find out what your risk of heart attack is using this online calculator.