Hubble Space Telescope
The Hubble Space Telescope orbits outside the distorting influence of Earth´s atmosphere.
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The diameter of our galaxy is about 100,000 light years; it contains more than 100 billion stars, one of which is our Sun.
This animation demonstrates the process of star development for average and massive stars.
This animation presents some interesting facts in the field of astronomy.
The Kepler space telescope was launched by NASA to discover Earth-like planets orbiting other stars
Observatories are often built at high elevations to minimize the effects of atmospheric turbulence
A demonstration of nearby planets, stars and galaxies.
The inner planets of the Solar System are terrestrial planets while the outer planets are gas giants.
Satellites orbiting the Earth can be used for civilian or military purposes.
The Space Shuttle was a manned, reusable spacecraft operated by NASA.
This animation shows optical and radiotelescopes used in astronomical observation
The orbits of the 8 planets in our Solar System are elliptical.
The three important laws describing planetary motion were formulated by Johannes Kepler.
The Global Positioning System consists of 24 satellites but only 4 have to be visible for positioning.
This animation introduces the studies of astronomers and physicists whose works fundamentally changed our view of the universe.
The diameter of the Sun is about 109 times that of the Earth. Most of its mass consists of hydrogen.
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.
A spacecraft on its path is in a constant state of free fall.
Massive accelerating or orbiting bodies cause ripples in spacetime. These are called gravitational waves.
The International Space Station is a habitable satellite built with the cooperation of 16 countries.
A wide variety of optical instruments are in use today, ranging from microscopes to telescopes.
The largest satellite of Pluto is Charon.
The Soviet-made satellite was the first spacecraft to be launched into outer space (in October 1957).
The formation of the Sun and the planets started with the contraction of a dust cloud about 4.5 billion years ago.
The animation shows the two-seater Lunar Rover used in the Apollo 15 mission
Space probes and Mars rovers examine the structure of Mars and possible traces of life.
Neil Armstrong, one of the crew members of Apollo 11 was the first man to set foot on the Moon.
Studying Ceres and Vesta will help us learn more about the early history of the Solar System and how rocky planets are formed.
The New Horizons space probe was launched in 2006, with the objective to study Pluto and the Kuiper Belt.
Yuri Gagarin became the first human in space on April 12, 1961.