The telescope was invented in 1608 by Dutch spectacle-maker Hans Lippershey, but it was Galileo Galilei who made it famous. By pointing his improved telescope toward the night sky, he discovered the moons of Jupiter and craters on the Moon!
Before telescopes, people believed the Earth was the center of the universe. With this new tool, scientists like Johannes Kepler and Isaac Newton unlocked the secrets of the cosmos.
Today, telescopes—like the Hubble Space Telescope—continue to reveal new planets, galaxies, and deep-space wonders, expanding our knowledge of the universe!
