No one has ever witnessed the complete evolution of any star from birth to death. Stars take a very long time - millions, billions, even trillions of years - to evolve. Yet in less than a century, astronomers have developed a comprehensive theory of stellar evolution that is one of the best-tested in all of astronomy.
| Game | Time | WPM | Accuracy |
|---|---|---|---|
| 2806 | 2017-04-09 19:53:44 | 45.29 | 90% |
| 1820 | 2017-03-17 20:39:38 | 42.45 | 90% |