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 |
---|---|---|---|
1011 | 2017-05-07 09:07:55 | 77.65 | 96% |
739 | 2017-03-26 07:06:09 | 66.46 | 92% |