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Our astronomical neighbourhood

Our astronomical neighbourhood

A demonstration of nearby planets, stars and galaxies.

Geography

Keywords

Solar System, nearby stars, galaxy, Andromeda, Milky Way, spiral arm, light year, Earth, Sun, star, Universe, astronomy, geography, physics

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Milky Way

The diameter of our galaxy is about 100,000 light years; it contains more than 100 billion stars, one of which is our Sun.

Types of stars

This animation demonstrates the process of star development for average and massive stars.

The Sun

The diameter of the Sun is about 109 times that of the Earth. Most of its mass consists of hydrogen.

Earth

The Earth is a rocky planet with a solid crust and oxygen in its atmosphere.

Hubble Space Telescope

The Hubble Space Telescope orbits outside the distorting influence of Earth´s atmosphere.

ISS

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

Kepler space telescope

The Kepler space telescope was launched by NASA to discover Earth-like planets orbiting other stars

Mars Exploration Program

Space probes and Mars rovers examine the structure of Mars and possible traces of life.

Moon landing: 20 July 1969

Neil Armstrong, one of the crew members of Apollo 11 was the first man to set foot on the Moon.

Planets, sizes

The inner planets of the Solar System are terrestrial planets while the outer planets are gas giants.

The Dawn mission

Studying Ceres and Vesta will help us learn more about the early history of the Solar System and how rocky planets are formed.

The life-cycle of the Solar System

The formation of the Sun and the planets started with the contraction of a dust cloud about 4.5 billion years ago.

Voyager space probes

The Voyager space probes were the first man-made objects to leave the Solar System. They gather data about outer space and carry information about humanity.

The development of celestial mechanics

This animation introduces the studies of astronomers and physicists whose works fundamentally changed our view of the universe.

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