universe

My greatest hope is that humans create a self-sustaining city on Mars, In the vast universe, human civilization is like a faint little candle, like a little shimmering light in the void. When the sun expands one day and the Earth is no longer habitable, we can fly to a new home in a spaceship. If humans can inhabit other planets, it means that they have passed one of the conditions of the great screening of the universe, then we will become interplanetary citizens, and human civilization will be able to continue.