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 |
---|---|---|---|
26341 | 2020-06-14 19:52:53 | 148.49 | 99% |
4278 | 2018-07-31 05:53:49 | 108.12 | 96% |