Water, Water, Every Where And Now Scientists Know Where It Came From

Environment: NPR
|

Automatic TRANSCRIPT

Water is everywhere on Earth the clouds, the rain, the oceans and rivers even our own bodies were 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 the earth formed four and a half billion years ago, compared to other planets in emerged pretty close to the sun there hot temperatures would mean, no water ice no ice to join with the swirling bits of rock and dust that we're running into each other and building up our young planet. That's. A. We do not know exactly were the what on Earth from why we need to find a source of water on Earth Laurette Peony works at a French research lab called CRP PG. She says that source of water could have been farther out in the solar system like maybe icy comments or water rich asteroids that hit the newly formed earth and watered it. This has long been the prevailing view to explain the the of the ocean and of the water engine on she wondered though if water could have been there at the start Sushi and. Some colleagues recently took a close look at a rare kind of meteorite. It doesn't look like anything special. It's like a gray rock, but it's also thought to have formed near the sun and is the same kind of primordial stuff that glommed together to create our planet and it turns out it contains plenty of hydrogen that's an indicator of its ability to contribute water to a planetary mix. In fact, if you built a planet out of this material, you'd have at least several oceans worth of water these findings described in the journal Science made on. Pay Liaise feel really happy I was happy because it makes it nice and simple. She's a planetary scientist at NASA's Johnson. Space Center in Houston Texas who wasn't part of the research team she says this old idea that Earth's water came from the outer solar system would have required something unusual like Jupiter having a little trip through the inner solar system to send water rich asteroids headed our way. So here we just don't need Jupiter. We're told me to do anything weird. We're just grabbed the material that was their form and that's what who are. Still, she says, even if most of the water was there at the beginning comets and such probably did deliver some of Earth's water later on Nell Greenfieldboyce NPR news.

Coming up next