How far is the distance between the earth and Mars? How long does it take human beings to get there by spaceship? How long will it take for a human Mars probe to reach the surface of Mars?

How far is the distance between the earth and Mars? How long does it take human beings to get there by spaceship? How long will it take for a human Mars probe to reach the surface of Mars?

Quote: at 1:58 Beijing time on June 11, 2003, the US spirit Mars probe was launched by delta 2 rocket at Kennedy Space Center. After nearly seven months of flight, at 12:35 noon on January 4, 2004, spirit successfully landed on the beautiful and unknown surface of Mars

Which part of the solar system does human aircraft fly farthest?

Human aircraft have now flown out of the solar system

What's the difference between your age and that on earth if you fly a light-year in outer space in a superluminal vehicle
If you fly a light-year in outer space and return to earth, how many years have passed? Theoretically speaking, is it possible to achieve time travel and time reversal
So what is the reference of the concept of time? What is the reference for light years? Why is a day 24 hours instead of more or less? Who invented and proposed time? What is the reference for his design? Why is a minute equal to 60 seconds? What is the time in a second? Based on what? What is the concept of the universe? How did the universe evolve? Does the universe have an outer dimension? We use the theory of relativity to assume that if the universe is a three-dimensional object, then what is outside the three-dimensional object? Is it a space similar to the universe, or a space of some kind? In terms of relativity, any object and space should have shape, but it is infinite. It can't be shapeless. What's the concept of shapeless? Even air has shape. Who can explain to me, who can explain to me clearly, I send 10000 points!! If we do not explore the universe with the theory of relativity, then all the laws of physics will have to be overturned, and human beings can only progress, otherwise we will have to wait for the earth to disappear. Because all the laws of physics are based on the earth as a reference to explore the law. Why is there a universe? Who gives me a satisfactory answer!! Why the universe and the earth!!

According to the theory of relativity, the greater the speed, the greater the mass of the object, and the greater the energy required to accelerate. When approaching the speed of light, the mass of the object will be close to infinity, and the energy required to accelerate will also be infinity, so it is impossible. No one can explain it to you. According to the current theory, the universe is