Here are two URL to rather GOOD astronomy lectures for those who need some basics, or those who just want to learn.
They're not *VERY* recent (4-5 year old), but are FULL of explanations, pictures, animations. Reading them all should take a few hours if you take time to take it all in.
Astronomy 161 The Solar System :
http://csep10.phys.utk.edu/astr161/lect/index.html
Astronomy 162 Stars, Galaxies, and Cosmology
http://csep10.phys.utk.edu/astr162/lect/index.html
They're not *VERY* recent (4-5 year old), but are FULL of explanations, pictures, animations. Reading them all should take a few hours if you take time to take it all in.
Astronomy 161 The Solar System :
http://csep10.phys.utk.edu/astr161/lect/index.html
Astronomy 162 Stars, Galaxies, and Cosmology
http://csep10.phys.utk.edu/astr162/lect/index.html