1. The Earth Isn’t Perfectly Round While we often think of Earth as a perfect sphere, it’s actually an oblate spheroid. This means it’s slightly flattened at the poles and bulges at the equator due to the planet's rotation.
2. The Sahara Was Once a Lush, Green Desert Around 10,000 years ago, the Sahara Desert was a green paradise filled with lakes, rivers, and wildlife. Today’s arid landscape hides the remnants of this forgotten world beneath its sands.
3. There Are More Stars in the Universe Than Grains of Sand on Earth Astronomers estimate that the observable universe contains around 100 billion galaxies, each with millions or even billions of stars. In fact, the number of stars is believed to vastly outnumber the grains of sand on all the beaches of Earth.
4. Octopuses Have Three Hearts and Blue Blood Octopuses are fascinating creatures that are very different from most marine life. They have three hearts—two pump blood to the gills, and one pumps it to the rest of the body. Their blood is also blue, due to a copper-based molecule called hemocyanin.
5. A Single Day on Venus is Longer Than a Year on Venus Venus has an extremely slow rotation. It takes 243 Earth days to complete one full rotation on its axis, but only 225 Earth days to orbit the Sun. That means a day on Venus is longer than its year!
6. The Shortest War in History Lasted Just 38 to 45 Minutes The Anglo-Zanzibar War of 1896 is known as the shortest recorded war in history. It occurred between the British Empire and the Sultanate of Zanzibar, lasting a mere 38 minutes.
7. Australia Is Wider Than the Moon The width of Australia from east to west is about 4,000 kilometers (2,485 miles), which is even greater than the moon's diameter, which is about 3,474 kilometers (2,158 miles).
8. The Great Wall of China Is Not Visible from Space Contrary to popular belief, the Great Wall of China is not easily visible to the naked eye from space. Astronauts report that the wall is too narrow and blends in too much with the natural surroundings to be seen from orbit without help.
9. Bananas Are Berries, But Strawberries Aren't Botanically speaking, bananas are classified as berries, while strawberries are not. A true berry must have three distinct layers, and bananas fit this criterion, while strawberries do not.
10. There Are More Trees on Earth Than Stars in the Milky Way It’s estimated that there are approximately 3 trillion trees on Earth—roughly eight times more than the number of stars in our Milky Way galaxy. This incredible fact highlights the richness of Earth's.
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