<h3><em>The science of astronomy took a huge leap forward in the first decade of the ... Galileo Galilei did not invent the telescope but was the first to use it ... The main problem with his telescopes was their very narrow field of view, ... They also have an excellent new site: Galileo's Telescope, the Instrument that Changed the World.</em></h3>
Lunar eclipses occur when the earth comes between the Sun and the Moon. This positioning quickly changes due to both the Earth and the Moon orbiting around the sun and each other.
