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 |
---|---|---|---|
2363 | 2018-01-13 22:07:42 | 56.38 | 99% |
714 | 2017-09-25 20:45:34 | 48.47 | 99% |