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 |
---|---|---|---|
690 | 2018-12-12 10:20:12 | 76.83 | 96% |
485 | 2018-12-08 10:15:13 | 74.32 | 96% |