Part I: Stars, planets, and life. The size and scale of the universe
From the day and night sky to planetary orbits
How stars radiate energy (I)
How stars radiate energy (II)
The lives and deaths of stars (I)
The lives and deaths of stars (II)
Why pluto is not a planet
The search for life in the galaxy
Part II: Galaxies. The interstellar medium
The expansion of the universe
Quasars and supermassive black holes
Part III: Einstein and the universe. Einstein's road to relativity
Implications of special relativity
Einstein's general theory of relativity
Cosmic strings, wormholes, and time travel
The shape of the universe and the big bang
Inflation and recent developments in cosmology
Our future in the universe
Appendix 1: Derivation of E=mc2
Appendix 2: Bekenstein, entrophy of black holes, and information.
