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 |
---|---|---|---|
1212 | 2017-02-25 19:06:06 | 128.16 | 98% |
891 | 2017-02-08 07:43:43 | 123.74 | 98% |