Did the chemical components necessary to create water on Earth come from space or already exist here? One prevailing notion holds that asteroids containing either water of its building blocks bombarded the planet. But now, a team of researchers have produced evidence that those building blocks were here since early in the planet’s history, according to a study published in the journal Icarus.
Pinpointing when and where Earth’s hydrogen is an essential key to understanding how life arose on the planet. Without hydrogen, there’s no water, and without water, life can’t exist here.
