Fly out of the Earth for nearly a minute at the speed of light, and will you still be able to see yo

You don't always get to see your family, because time slows down at the speed of light, and you may return to Earth, where hundreds or thousands of years have passed.

If we fly out of the earth in a flying machine, because the aircraft can fully protect our body from the damage of the universe. Of course, I will be able to see the married man when I return. But if you fly out of Earth without any protection like Superman, even if you are close to the speed of light, you will never come back.

Not to mention meeting family.

Of course, we can see our families, because our bodies are not harmed by the universe, and we are fully protected by the aircraft, but the speed is very fast in just one minute, so we can return to the earth to see our families.

Of course, you can see your own family, because the minute you go out is a very fast moment. It's okay to smoke a cigarette, and you can experience it for a minute on Earth, so you can see your family.

The limit case is a little over two years. Since the spacecraft is flying at the limit close to the speed of light, flying from the Earth to a planet a light-year away, in addition to the effects of acceleration and deceleration, the spacecraft will take a little more than a year on Earth to reach a planet a light-year away, and then take a little more than a year on Earth to return to Earth. But what observers on Earth see is that it would take more than two years for a spacecraft to reach its destination a light-year away.

This is because as the spacecraft moves away from Earth, it takes longer and longer for the signals on the spacecraft to travel back to Earth, and when the spacecraft reaches a planet light years away, it will take a year for observers on Earth to see the result. However, within a few days of the arrival of the spacecraft seen by observers on Earth, the spacecraft had already returned to Earth and landed. This is because the spacecraft returns to Earth at an extreme speed close to the speed of light, so it returns to Earth at about the same time as the light seen by observations on Earth when the spacecraft arrives.

But for the people on the spaceship, he felt that it would take hours, if not minutes, for the spacecraft to reach another planet a light-year away, and then a few hours or minutes back to Earth. Because according to Einstein's special theory of relativity, when the limit of an object is close to the speed of light, the time limit on it is close to stationary, so the time of a year on Earth is only a few days, hours, or even minutes for a spacecraft.

An important assumption in this question is that we are able to make a round-trip trip with a spacecraft that is close to the speed of light at the limit. But in fact, it is impossible to build such a ship for the foreseeable future. According to Einstein's special theory of relativity, when the limit of a mass object is close to the speed of light, its mass will tend to infinity.

We know that the acceleration acquired by the substance is equal to the mass divided by the thrust. When the mass tends to infinity, no amount of force can accelerate the spacecraft. In the case of a spaceship, the propulsion is provided by energy, which means that no amount of energy can accelerate the ship to the limit close to the speed of light.

Therefore, this problem can only be imagined, not realized.

Could it be back two years ago?