Answer:
A spacecraft is a vehicle or device designed for travel or operation outside the Earth's atmosphere, whereas a satellite is an object that orbits the Earth, the moon, or another celestial body. ... The Voyager and Pioneer spacecraft are not satellites because they are not in an orbit around any object.
Zero eccentricity means circle. Aphelion and perihelion distances equal, and radius of the circle
Transit efficiency, energy usage, and average income
Answer:what does that even mean
Explanation:
The total journey time from Earth to Mars takes between 150-300 days depending on the speed of the launch, the alignment of Earth and Mars, and the length of the journey the spacecraft takes to reach its target. It really just depends on how much fuel you’re willing to burn to get there. More fuel, shorter travel time.
