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 |
---|---|---|---|
69 | 2019-06-11 20:29:17 | 88.47 | 96% |
25 | 2018-10-26 18:07:12 | 77.54 | 96% |