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 |
---|---|---|---|
4335 | 2017-07-27 09:44:46 | 51.70 | 95% |
3777 | 2017-06-13 07:39:22 | 44.65 | 95% |