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originally posted by: Astyanax
And to think that ATS is full of people who believe water can be used as a fuel...
originally posted by: wildespace
...Practically every element in the Solar System (including the Sun), apart from some helium, is older than the Sun. The Sun currently fuses hydrogen into helium, so there's some "new" helium in our system. The rest (including oxygen and hydrogen that make up water) originated in the interstellar medium enriched by previous supernova explosions.