Where Did Earth Get Its Oceans? Maybe It Made Them Itself

Scientists are re-evaluating the origins of Earth's water, moving away from the theory that comets delivered it to the planet. Recent chemical analysis suggests that asteroids may be a more likely source for the water that sustains life on Earth.
Why it matters
Understanding the origin of water is fundamental to planetary science and the search for life-sustaining conditions on other moons and planets.
Home Where Did Earth Get Its Oceans? Maybe It Made Them Itself. Comment Save Article Read Later Share Facebook Copied! Copy link Email Pocket Reddit Ycombinator Comment Comments Save Article Read Later Read Later earth science Where Did Earth Get Its Oceans? Maybe It Made Them Itself. By Robin George Andrews June 12, 2026
The article reports on scientific findings and evolving theories without political or ideological framing.
Get smarter about the news
Sign up free for a feed built around what you actually care about, Dive Deeper research on any story, and the full text of every article.
Create free accountAlready have an account? Sign in