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 |
---|---|---|---|
1941 | 2017-05-08 13:39:16 | 73.02 | 92% |
1829 | 2017-04-28 11:02:01 | 83.51 | 95% |