Lunar eclipse

Lunar eclipses occur when the Moon passes through the shadow cone of Earth

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The Solar System; planetary orbits

The orbits of the 8 planets in our Solar System are elliptical.

Renewable sources of energy

Who wouldn’t be familiar with solar-powered calculators or windmills? Let’s have a look at the...

Solar eclipse

When the Sun, Earth, and the Moon are arranged in a straight line, the Moon can partially...

Political and economic unions

Several political and economic unions have been formed between countries during the past...

Seas and bays

This animation demonstrates the most important seas and bays.

Pluto - Charon system

The largest satellite of Pluto is Charon.


The International Space Station is a habitable satellite built with the cooperation of 16...

The loneliest place on Earth

There is a spot in the open ocean that is 2,688 km away from the nearest land.

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