Is it realistic to have aliens invading Earth for water?

I can think of at least 2 movies that had aliens invading Earth for water.

Is this a feasible motivation? I was thinking that

1. Water is H20, i.e. dihydrogen monoxide
2. The vast majority of the universe is made of hydrogen
3. Oxygen is also pretty common as it's the 3rd most common element in the unverise
4. We can combine the raw elements into water, so certainly an alien species so advanced as to be capable of interstellar travel to Earth could also easily combine these 2 abundantly available elements into water

But OTOH I'm not an expert and large teams of people working on big budget Hollywood films seem to think it's a reasonable motivation.

posted about 8 years ago

Hack-R‭

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