- The Planets Move (2000 B.C. – 500 B.C.)
- The Earth Moves (1543)
- Planetary Orbits Are Elliptical (1605 – 1609)
- Jupiter Has Moons (1609 – 1612)
- Halley's Comet Has a Predictable Orbit (1705 – 1758)
- The Milky Way Is a Gigantic Disk of Stars (1780 – 1834)
- General Relativity (1915 – 1919)
- The Universe Is Expanding (1924 – 1929)
- The Center of the Milky Way Emits Radio Waves (1932)
- Cosmic Microwave Background Radiation (1964)
Gamma-Ray Bursts (1969 – 1997) - Planets Around Other Stars (1995 – 2004)
- The Universe Is Accelerating (1998 – 2000)
Don't forget to stop music in the gadget at the right side panel.
