univers

Year of Discovery: 1610 What Is It? Other planets (be sides Earth) have moons. Who Discovered It? Galileo Galilei Why Is This One of the Science Greatest? Galileo discovered that other planets have moons and thus extended human understanding beyond our own planet. His careful work with the telescopes he built launched modern astronomy. His [...]

Year of Discovery: 1598 What Is It? Objects fall at the same speed regardless of their weight. Who Discovered It? Galileo Galilei Why Is This One of the Science Greatest? It seems a simple and obvious discovery. Heavier objects don’t fall faster. Why does it qualify as one of the great discoveries? Because it ended [...]

Year of Discovery: A.D. 1520 What Is It? The sun is the center of the universe and the earth rotates around it. Who Discovered It? Nicholaus Copernicus Why Is This One of the Science Greatest? Copernicus measured and observed the planets and stars. He gathered, compiled, and compared the observations of dozens of other astronomers. [...]