Main content
Why are there so many spheres?
Why does gravity create stars, planets and moons that are spherical? Maggie Aderin-Pocock heads to the fun fair to find out.
Duration:
This clip is from
More clips from How Gravity Shapes the Universe
![]()
Starguide: May 2014
Duration: 01:21
More clips from The Sky at Night
![]()
The Moon's Differing Faces
Duration: 00:45
![]()
Every Gram Counts
Duration: 01:03
![]()
The Astronaut Experience
Duration: 01:17
