Question

What makes other planetary systems different from one another, for example, the Earth is not the same as Venus or Mars? In the next couple of years, we will be sending people to Mars, evaluateand write about the challenges invovled in making this trip. Will human beings survive on Mars?

Answer 1

The otehr planetary system is different than Earth due to its contituents, its mass and distance from Sun. Due to some mass of some planets like Venus and Jupiter the planet is made of gas only. Due to closeness of venus the surface temparture is very high as compared to earth.

The challenges involved in sending people to Mars.

1. Making powerful rocket – Most of rocket fuel is lost to remove it from earth earth gravity. So to reach mars we need to make bigger and more powerful rockets.
2. Food and oxygen supply – Since the mars journey will take time, there need to be plenty of food and oxygen for return trip
3. Power – To reach Mars and work there, there will be requirement of power so we need to supply power sources along with the rocket

In recent researches, it is found that humans can inhibit in Mars given they get vital supplies like oxygen, water and food from earth. If life can sustain in Mars is not clear.