1) Michael Jackson's album "Thriller" is the best-selling album of all time, with estimated sales of over 66 million copies worldwide.
2) The phenomenon known as "black holes" occurs when matter is crushed into an infinitely small space, creating a gravitational pull so strong that nothing can escape.
3) The Great Wall of China is not visible from space without aid, contrary to popular belief.
4) The human body contains enough carbon to make over 9,000 pencils.
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