In 1977, a mysterious signal known as the 'Wow! signal' was detected from space.
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Jupiter is the largest planet in the solar system.
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The Milky Way is on a slow collision course with Andromeda.
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Cosmic rays constantly bombard Earth from space.
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The Earth orbits the Sun once every year.
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The Moon's gravity affects ocean tides.
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There are rogue planets drifting through space with no star at all.
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The Moon's gravity affects ocean tides.
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The Earth's magnetic field shields the planet from solar wind.
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