Astronomy
T1. solar system 3, plates, orbits, periods, light,
Solar System And Beyond
Our pretty planet
Earth in Space (a work in progress) Dr. Alan F. Weekes.
An Introduction to Contest Operating Bud Semon N7CW November 6, 2008.
Phases of the Moon Not the Shadow of the Earth!!!.
The Earth and Beyond. The Sun is the star at the centre of our solar system. The nine planets orbit the sun. Here is a useful mnemonic to help remember.
Adriana Dumitrache, Cristiana Dumitrache. There is geometry in the humming of the strings... there is music in the spacing of the spheres. Pythagoras.
Knowledge Day Fly me to the Moon ESA/ESRIN, 14 Novembre 2008 Francesco De Paolis ARISS Europe - Mentor AMSAT Italia - National Secretary IKØWGF.
Sun, moon, and earth
Es Ch. 23 Solar System
