| Type | |
| Purpose | |
| Invented | 15th century |
| Inventor | |
| Contribution | Revolutionized the Age of Discovery • Provided evidence for the structure of the universe • Influenced understanding of the Big Bang and gravity |
| Famous telescopes | Hubble Space Telescope • Spitzer Space Telescope • Chandra X-ray Observatory |
| Modern telescopes | Push the boundaries of knowledge with increasingly sophisticated technologies |
| Celestial bodies observed |
