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 |
---|---|---|---|
1077 | 2020-09-28 02:01:57 | 81.37 | 97% |
470 | 2020-09-02 14:04:39 | 63.94 | 94% |