Answer : The distance between Earth and Mars, the speed of the spacecraft, and the trajectory chosen all affect how long it will take to reach Mars.
Depending on their relative positions in their respective orbits, the distance between Earth and Mars fluctuates. Mars and Earth are separated by 140 million miles (225 million km) on average.
If a spacecraft is launched at the most advantageous moment when Earth and Mars are closest to one another, it can travel to Mars in as little as 7 months with present technology. However, if the launch window is missed or a slower trajectory is used, the trip might go up to 9 months or longer.
It’s also vital to keep in mind that the actual journey to Mars may take longer than anticipated. This is due to the fact that, before returning to Earth, the spacecraft needs to spend some time in orbit above Mars to prepare for landing and carry out scientific investigations. Depending on the mission goals, a Mars mission’s overall duration can range from a few months to several years.
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