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 |
|---|---|---|---|
| 6743 | 2017-03-12 11:25:03 | 53.54 | 90% |
| 6649 | 2017-02-13 12:12:42 | 48.15 | 92% |