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 |
---|---|---|---|
9245 | 2017-07-28 03:41:54 | 137.88 | 98% |
6968 | 2017-02-02 03:00:04 | 158.06 | 98% |
6967 | 2017-02-02 02:58:29 | 147.86 | 99% |