For astrophysicists, dark matter has proved to be an elusive and mysterious substance. In this episode, Patrick Moore talks to Professor Carlos Frenk about the Universe's darkest secret. Show more
Discover 11,123,918 listings and 293,545 playable programmes from the BBC
For astrophysicists, dark matter has proved to be an elusive and mysterious substance. In this episode, Patrick Moore talks to Professor Carlos Frenk about the Universe's darkest secret. Show more