Is it true that we will soon be living on another planet?

Answer

No, that is certainly not true.
First, we don’t have the rockets and spaceships to do that. We currently don’t even have a spaceship to go to the moon. A space shuttle does not travel more than 500 km from Earth, and has a usable time span of at most two weeks. It really is a space SHUTTLE, which can only shuttle between Earth and a space station around Earth. A Russian Soyuz could perhaps be adapted to fly around the moon in a few years, but in that case only two people will fit in it, and you cannot land on the moon with it. A new launch vehicle would also have to be developed to send Soyuz towards the moon, and that would certainly take a number of years. I don’t see a trip to Mars happening in the next 10 years and perhaps you can count on 20 years.

Second, we don’t have the technology to allow a crew to travel independently in space for months or years. Agreed, people stay on the ISS for six months, but remember that they are resupplied there every few months, with the ability to return to Earth in a few hours. This is not possible during a trip to Mars, so one would have to take all supplies with them. That, in turn, requires a type of spaceship that we don’t have.

And then on that planet: there we would be forced to live in a base, with an artificial living environment adapted to humans. The concept of “outside” would be virtually non-existent unless in a spacesuit and limited by all kinds of safety measures (both inside and outside) because the slightest mistake could be fatal. Again, we don’t have that technology to build and operate a base completely independently on another planet.
And in any case, you could at most lose a few dozen people in such a base.

You see, I have a lot of doubts that we would be living on another planet in the foreseeable future. I don’t think it would be fun there, it really would be “no life”.