| Discovery | Year | Info |
|---|
| Supernova that created Crab Nebula is obsereved by Chinese astronomers | |
| First telescopic observation performed by Galileo | |
| Uranus was the first 'new' planet discovered in modern times. Identified by William Herschel | |
| First asteroid (Ceres) discovered on the first day of the 19th century | |
| Eight planet Neptune discovered... | |
| Pluto discovered... | |
| Hubble Space Telescope launched into orbit | |
| First trans-neptunian (Kuiper Belt) object discovered... | |
| First exoplanet orbiting around 'normal' star discovered | |
Periodic Table
Planets from the Sun
Digits of Pi
