Main content
Near Earth Objects
Prof Alan Fitzsimmon reveals how our knowledge of Near Earth Objects has changed over the last 20 years.
Duration:
This clip is from
More clips from Expedition Asteroid
![]()
Meteorite Hunter
Duration: 02:11
![]()
What are Meteorites?
Duration: 00:48
![]()
Starguide: September 2018
Duration: 02:59
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
