Lecture 1: a grand tour of the cosmos; Lecture 2: the rainbow connection; Lecture 3: sunrise, sunset; Lecture 4: bright objects in the night sky; Lecture 5: fainter phenomena in the night sky; Lecture 6: our sky through binoculars and telescopes; Lecture 7: the celestial sphere; Lecture 8: the reason for the seasons; Lecture 9: lunar phases and eerie lunar eclipses; Lecture 10: glorious total solar eclipses; Lecture 11: more eclipse tales; Lecture 12: early studies of the solar system.Part 2
Lecture 13: the geocentric universe; Lecture 14: galileo and the copernican revolution; Lecture 15: refinements to the heliocentric model; Lecture 16: on the shoulders of giants: Lecture 17: surveying space and time; Lecture 18: scale models of the universe; Lecture 19: light, the supreme informant; Lecture 20: the wave-particle duality of light; Lecture 21: the colors of stars: Lecture 22: the fingerprints of atoms; Lecture 23: modern telescopes; Lecture 24: a better set of eyes.Part 3
Lecture 25: our sun, the nearest star; Lecture 26: the earth, third rock from the sun; Lecture 27: our moon, earth's nearest neighbor; Lecture 28: mercury and venus; Lecture 29: of mars and martians; Lecture 30: jupiter and its amazing moons; Lecture 31: magnificent saturn: Lecture 32: uranus and neptune, the small giants: Lecture 33: pluto and its cousins; Lecture 34: asteroids and dwarf planets; Lecture 35: comets, gorgeous primordial snowballs; Lecture 36: catastrophic collisions.Part 4
Lecture 37: the formation of planetary systems: Lecture 38: the quest for other planetary systems; Lecture 39: extra-solar planets galore; Lecture 40: life beyond the earth; Lecture 41: the search for extraterrestrials; Lecture 42: special relativity and interstellar travel; Lecture 43: stars, distant suns; Lecture 44: the intrinsic brightnesses of stars; Lecture 45: the diverse sizes of stars; Lecture 47: star clusters, ages and remote distances; Lecture 48: how stars shine, nature's nuclear reactors.Part 5
Lecture 49: solar neutrinos, probes of the sun's core; Lecture 50: brown dwarfs and free-floating planets; Lecture 51: our sun's brilliant future; Lecture 52: white dwarfs and nova eruptions; Lecture 53: exploding stars, celestial fireworks; Lecture 54: white dwarf supernova, stealing to explode; Lecture 55: core-collapse supernova, gravity wins; Lecture 56: the brightest supernova in nearly 400 years; Lecture 57: the corpses of massive stars; Lecture 58: Einstein's general theory of relativity; Lecture 59: warping of space and time; Lecture 60: black holes, abandon hope, ye who enter.Part 6
Lecture 61: the quest for black holes; Lecture 62: imagining the journey to a black hole; Lecture 63: wormholes, gateways to other universes; Lecture 64: quantum physics and black-hole evaporation; Lecture 65: enigmatic gamma-ray bursts; Lecture 66: birth cries of black holes; Lecture 67: our home, the milky way galaxy; Lecture 68: structure of the milky way galaxy; Lecture 69: other galaxies, "island universes"; Lecture 70: the dark side of matter; Lecture 71: cosmology, the really big picture; Lecture 72: expansion of the universe and the big bang.Part 7
Lecture 73: searching for distant galaxies; Lecture 74: the evolution of galaxies: Lecture 75: active galaxies and quasars; Lecture 76: cosmic powerhouses of the distant past; Lecture 77: supermassive black holes; Lecture 78: feeding the monster; Lecture 79: the paradox of the dark night sky; Lecture 80: the age of the universe; Lecture 81: when geometry is destiny; Lecture 82: the mass density of the universe; Lecture 83: Einstein's biggest blunder; Lecture 84: the afterglow of the big bang.Part 8
Lecture 85: ripples in the cosmic background radiation; Lecture 86: the stuff of the cosmos; Lecture 87: dark energy, quantum fluctuations; Lecture 88: dark energy, quintessence; Lecture 89: grand unification and theories of everything; Lecture 90: searching for hidden dimensions; Lecture 91: the shape, size, and fate of the universe; Lecture 92: in the beginning; Lecture 93: the inflationary universe; Lecture 94: the ultimate free lunch; Lecture 95: a universe of universes; Lecture 96: reflections on life and cosmos.