Main content
Helen investigates sunspots
Sunspots have been observed by astronomers since before the invention of the telescope, and now they're revealing that the sun's behaviour may be undergoing a big change.
Duration:
This clip is from
More clips from The Secret Life of the Sun
-
![]()
Race for the eclipse
Duration: 01:09
-
![]()
Chasing the aurora
Duration: 00:23
