Has Earth Always Had Oceans?

There is also geological evidence that helps constrain the time frame for liquid water existing on Earth. ... More recently, in August 2020, researchers reported that sufficient water to fill the oceans may have always been on the Earth since the beginning of the planet's formation.

Did early Earth have oceans?

The early Earth had no oceans and was frequently hit with meteorites and asteroids. There were also frequent volcanic eruptions. Volcanic eruptions released water vapor that eventually cooled to form the oceans.

When did water first appear on Earth?

Where all that water originally came from is a bit of a mystery. NPR's Nell Greenfieldboyce reports that scientists may have found the answer inside some rare meteorites. NELL GREENFIELDBOYCE, BYLINE: The Earth formed 4 1/2 billion years ago. Compared to other planets, it emerged pretty close to the sun.