Rachel
About
Khan Academy on a Stick
Supermassive black holes
Supermassive Black Holes
Life and death of stars
Birth of stars
Accreting mass due to gravity simulation
Becoming a red giant
White and black dwarfs
Star field and nebula images
Lifecycle of massive stars
Supernova (supernovae)
Supernova clarification
Black holes
Supermassive black holes
Your browser does not support Flash or HTML5 video. You can:
upgrade your browser
install Flash
try this direct link
If the above player doesn't work,
try this direct link
.