Earth is the third planet from the Sun and the only astronomical object known to harbor life. Radiometric dating and other evidence say the planet was formed some 4.5 billion years ago. The world population is currently 7.53 billion people. give or take a few million. Some currently accepted facts are: 1) Earth was once believed to be the center of the universe. 2) Earth is the only planet not named after a mythological God or Goddess.  3) Earth is the most dense planet in our solar system.  4) The gravity between the Earth and the Moon causes the tides. 5) The rotation of the Earth is slowing down. 6) The large amount of oxygen on Earth comes from our plant life’s consumption of carbon dioxide.  7) Earth has a very powerful magnetic field.  8) The Earth has an ozone layer which protects us from harmful solar radiation.  9) 70% of the Earth’s surface is covered by water.  10) The first life on Earth started in the oceans.  11) Earth has relatively few visible impact craters. 12) The highest point on Earth is Mount Everest. 13) The lowest point on the planet is called the Challenger Deep. 14) Earth has one of the most circular orbits of all the eight planets. 15) A year on Earth is 365 days. For 7.53 billion people, Earth is much the same in general, but very different specifically. An Amazon headhunter and a Wall Street stockbroker both have to hunt but their tools and techniques couldn’t be more different. As far as we know, our planet is not stable and spins in space like a Christmas ornament blown by mysterious winds. As far as we know, what happens to us might be of our own making. As far as we know, facts are true until they are proven otherwise.  
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