Water is essential to life and is tough to find on other planets in pure and drinkable form. While certain planets and moons do have water, it either isn’t pure enough or frozen.

To start, let’s have a quick look at the composition of water. Water is a molecule made up of 3 atoms, out of which two are hydrogen and one is oxygen. Hydrogen is one of the most abundant elements in the universe, whereas oxygen is much rarer. Water can be broken back down into its original elements through the process of electrolysis. by this process, water splits into hydrogen and oxygen. This is a very easy experiment, whereas reconstructing water is much harder.

In theory, you could blast a ray of energy through a group of atoms and create water vapour, but three issues arise. the first issue is that this water is insufficient to do any good, secondly, making large amounts of water would be expensive and impractical, and finally, there is a risk of explosions. This process is highly volatile as the energy is far too strong. If the elements are not fused well, there is a risk of devastating blasts.

Therefore until water is found safely on a habitable planet, we shall have to stick to earth.