A human-operated spaceship reaches the moon in 3 days. The moon is about 386,400 km from Earth. Mars, our closest planetary neighbor, is, at its closest, about 140 times farther away from us than the moon if Mars stays in place. Assuming a very simple model of the solar system, about how long would it take that same spaceship to reach Mars?(1 point)
Responses
about 1 year
about 1 year
about 7.5 years
about 7.5 years
about 2.5 years
about 2.5 years
about 22.5 years
about 2.5 years
To determine how long it would take for the spaceship to reach Mars, we can use the fact that Mars is about 140 times farther away from us than the moon. Since it takes 3 days to reach the moon, we can calculate the approximate time it would take to reach Mars by multiplying the moon's travel time by 140.
Therefore, the spaceship would take approximately 3 days x 140 = 420 days, or about 1.15 years, to reach Mars.
So the correct answer is: about 1 year.