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Solar System

The orbits of the stars according to Tycho Brahe

Did Galileo Galilei ignore observations?

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Callisto. Photo: NASA

Callisto-Moon of Jupiter

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Solar system - the planets are shown according to their relative size. NASA illustration

15 percent of the planetary systems in the universe are similar to the solar system

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The orbit of the Voyager 2 spacecraft. The interstellar cloud location is marked with yellow lines. Illustration: American Museum of Natural History

What holds the interstellar cloud in place? The mystery is solved

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The Perseid shower: tonight and tomorrow the records - an opportunity to learn what a meteor shower is

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Rain from the sun in the gas giants of the solar system

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A "small bang" causes the formation of the solar system

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Again the nonsense returns: Mars will not look as big as the Moon

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A new device can recreate the creation of planets and moons

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The new map of the Milky Way: a galaxy with 2 arms

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The Ulysses mission comes to an end after 17 years

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The World Astronomical Union throws Pluto a bone - it and the trans-Neptunian bodies will be called plutoids

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The Mercury Messenger spacecraft will pass by Mercury on Monday

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From now on they said Eris and not Xena * From now on he is also a dwarf planet

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The number of planets in the solar system - does it really matter how much?

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Were the changes in the definitions of the planets essential and how much their contribution affects the space sciences

New solar system(?)

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Astronomers challenge the decision to downgrade Pluto and call it a hijacker

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"Many tearful eyes" at the IAU conference in Prague where it was decided to demote Pluto

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The strict ones won - Pluto loses its status as a planet and becomes a 'dwarf planet'

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Today the vote on the definition of the planets in the solar system * Proposal: adding the atmosphere as a criterion

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Eight stars?

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12 Kochbia: the sequence of decisions regarding the determination of the definition of the planets

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There is a compromise in which the number of planets will increase to 12 and a waiting list of additional bodies will be opened

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3,000 astronomers are currently meeting in Prague to discuss the fate of Pluto

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Project 365 - Copernicus' birthday

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