24:53

The Solar Neutrino Problem

48:37

The Sun's Surface Appearance

24:04

The Core of the Sun

41:42

Evolution of High Mass Stars

36:54

Novae and Type Ia Supernovae

29:30

Proper Motion and Parallax

18:59

The Deepest We Have Ever Seen Into the Sun | SDO 4K

1:22:50

Atomic Physics