Lunar eclipses occur when the Moon passes through the shadow cone of Earth
Uranus is the 7th planet from the Sun, a gas giant.
This animation demonstrates the most important seas and bays.
The Earth's continents have been in constant motion during the history of the planet.
This animation presents some interesting facts in the field of astronomy.
The Earth is composed of several spherical layers.
A demonstration of nearby planets, stars and galaxies.
The Earth is a rocky planet with a solid crust and oxygen in its atmosphere.
The geographic coordinate system enables every location on the Earth to be exactly specified.