ILLUSTRATIONS!
| Retrograde Motion | Movie showing the retrograde motions of Saturn and Jupiter. Also the retrograde loop of Mars. |
| Tycho's Tools | Some of Tycho Brahe's instruments. |
| Parallax | An illustration of parallax. |
| Orbits | Newton's diagram illustrating orbital motion. |
| Geocentric | The geocentric Ptolemaic universe. |
| Heliocentric | The heliocentric universe of Thomas Digges, 1576 and the Copernican Universe. |
| Jupiter | Galileo's Jupiter observation notes. |
| Galileo's Moon | Galileo's drawings of the Moon made in December of 1610. |
| Galileo Retro | Galileo's retrograde motion diagram. |
| Galileo's Telescope | One of Galileo's Telescopes |
| Galileo's Sunspots | One of Galileo's sunspot drawings. |
| Herschel's Scope | The 40 foot telescope designed by William Herschel in the late 18th century. |
| Razor | Diffraction of light around a razor blade. |
| Fireball | An atomic fireball one millisecond after detonation! |
| Earthquake | Earthquake vibrations recorded by a sand-tracing pendulum! |
| Shock Waves | Examples of shock waves. Pictures of the supersonic car! |
| Jetcar! | Fantastic movie of the jet car breaking the sound barrier on land! (32 MB movie) |
| Spectral Types | Illustration of stellar spectral types. |
| Neighborhood | Stars in the Sun's neighborhood. |
| Color-Magnitude Diagram | A color-magnitude diagram for the globular cluster M55. |
| Black Hole | An artist's picture of a black hole in a binary system. |
| Planet-Sun Collision | What would happen if a Jovian planet collided with a star? |
| Voyager Message | The message sent on the Voyager spacecraft. |
| Electromagnetic Spectrum | The Electromagnetic Spectrum. |
| Binary Stars | Illustrations of binary stars. |
| Iceberg | Picture of what is under "just the tip of the iceberg". |