In the last 7 years, humanity has discovered 43 potentially habitable planets.
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If aliens located 60-65 million light years away from us, looked at earth through a really powerful telescope today, they would see dinosaurs!
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A lump of pure gold the size of a matchbox can be flattened into a sheet the size of a tennis court.
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The University of Oxford (teaching since 1096) predates the Aztec empire (1428 - 1521).
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The focusing muscles of the eyes move around 100,000 times a day. To give your leg muscles the same workout, you would need to walk 80km (50 miles) every day.
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