If Elon Musk's prediction continues, people on Earth will go back and forth to Mars. The billionaire plan allows people to move to the closest planet to Earth, but still a few million miles away.
In fact, if the Musk SpaceX project goes well, the question arises how long will it take to actually get to Mars? The smallest distance recorded between Earth and Mars is 34.8 million miles (56 million kilometers). The distance varies due to our orbit.
Even light, which runs very fast, can take up to 12 minutes to reach the surface of Mars. Launch the fastest rocket from Earth in 2015 and drive at 36,000 mph (58,000 kph). Mars can go further, depending on when you visit. Scientists say that a trip to Mars takes about 300 days. It's just under ten months.
However, some say that if all the right elements are aligned and you use a lot of fuel, it takes 150 days, ie five months. NASA claims that with all the perfect conditions that exist and with the planets literally aligning to help travel, they can take you there in nine months.
To get an accurate figure of travel time, you must calculate an accurate distance, but it is always changing. Because the planets are always moving. And a pilot must reduce speed when entering the orbit of Mars, to make sure it can land properly on it.
Obviously, traveling to Mars while on the other side of the sun will also take longer. You can not travel through the sun. You want to travel by the time Mars and Earth pass each other. And this happens every 26 months.