I'm an award-winning journalist writing about the night sky and eclipses.
Where did the water on Earth come from? About 71% of Earth's surface area is oceans, which contain 97% of Earth’s water. Human bodies are 55-60% water. Its origin is a missing link in scientists' understanding of our planet's history and life upon it.argues that a new category of space rock called “ dark comets ” are much more common than previously thought and may have delivered water to Earth long ago.
“They only stay in the near-Earth environment for around 10 million years.” The solar system is about 4.5 billion years old.Robert Downey Jr’s Casting As Doctor Doom Sparks Backlash From Fans“We don't know if these dark comets delivered water to Earth. We can’t say that. But we can say that there is still debate over how exactly the Earth's water got here,” said Taylor.
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