Respuesta :
Answer:
astronomical units
Explanation:
it is used to see how far away a planet really is by measuring it with light and how fast and far it travels to hit the planet.
Answer:
It's age
Explanation:
I did it and the answer was age
Answer:
astronomical units
Explanation:
it is used to see how far away a planet really is by measuring it with light and how fast and far it travels to hit the planet.
Answer:
It's age
Explanation:
I did it and the answer was age