An organisation called Mars One is planning to establish a permanent colony of humans on Mars by 2023.
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In the last 7 years, humanity has discovered 43 potentially habitable planets.
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If two pieces of metal touch in space, they become permanently stuck together.
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Not only are there rogue planets floating through space completely alone, not orbiting any stars, but it’s possible that these pitch-black lonely planets support life.
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It takes a photon 170,000 years to travel from the core of the Sun to the surface, but only 8 minutes to travel the rest of the way to Earth.
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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.
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