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FACT OR FICTION: Did Greeting card companies invent Valentine's Day for profit?
If you're wondering, Valentine's Day is the second biggest day of the year for sending greeting cards, behind Christmas.
Is this where ‘city killer’ asteroid YR4 will hit? Nasa scientist reveals countries in ‘risk corridor’ for space rock
NASA has revealed which countries could be hit if a “city killer” asteroid strikes Earth with a map of the risk corridor. Scientists have slashed the odds of a collision between ...