Starfish onshore. Photo source: ©© Midlander1231
Excerpts;
New evidence supports the theory that comets delivered a significant portion of Earth’s oceans, which scientists believe formed about 8 million years after the planet itself.
For the first time, astronomers have found water on a comet that’s a chemical match for water on Earth, a new study says. The discovery backs up theories that water-rich comets helped fill ancient Earth’s oceans.
Planet-formation models indicate that early Earth was much too hot to sustain liquid water on its surface, making the origin of Earth’s oceans a mystery…
