It's important because you have to know when to make it go faster or else you might not be able to go upside down or in a circle
Answer: Hale-Bopp was an unusually bright comet that flew by Earth, reaching its closest approach to the planet in 1997.
Explanation:
Hale-Bopp is the answer
Well, it happens a few weeks ahead, then for a total of 3 hours and 40 minutes.
You should trust the primary source more.
This is because the primary source is make its conclusion from direct observation, while the secondary source is possibly making reference to another secondary source or to another primary.
The primary source should be trusted more because it is from direct observation.