There's a mysterious dwarf planet between Mars and Jupiter called 'Ceres' which has never been visited by spacecraft or photographed in detail, however, Earth-bound telescopes reveal a large bright shining spot on the surface of this planet, the origin and nature of which are unknown.
5
The Earth gets 100 tons heavier every day due to falling space dust.
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An organisation called Mars One is planning to establish a permanent colony of humans on Mars by 2023.
9
Summer on Uranus lasts for 21 years.
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In the last 7 years, humanity has discovered 43 potentially habitable planets.
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