No music...sorry. Next time. Time speed up video of the lunar eclipse I did using a simple Nikon camera and a Newtonian Reflector telescope. To do better videos, please do not hesitate to donate. Page available at website.

A description of habitable zones around stars and in the Milky Way and other galaxies.

A description of the various methods used to measure distances in astronomy.

A description of the planets, moons, and dwarf planets in the Solar System and how their mass and distance from the Sun determine their atmospheric properties.

An introduction to the discoveries of planets beyond the Solar System.

The history of our understanding of the expansion of the universe and evidence for a hot Big-bang.

A description of the Local Group and Local Supercluster, known as the Virgo Supercluster, of galaxies.

Moving Otto for flat testing