Tuesday, September 22, 2020
Contact us    |    Advertise    |   Help    |   Cookie Policy    |   Privacy Policy    RSS icon Twitter icon Facebook icon
    Home  ·  News  ·  Forum  ·  Stories  ·  Image Gallery  ·  Columns  ·  Encyclopedia  ·  Videos
Find: in

Where did the Earth get all of its water from ?


Posted on Friday, 28 August, 2020 | Comment icon 4 comments

Was the Earth's water here all along ? Image Credit: CC BY-SA 3.0 NikoLang
A new study has cast doubt on the prevailing theory of how our planet came to possess so much water.
For years, it was generally believed that most of the Earth's water was not present when our planet originally formed but instead arrived later via water-rich comets and meteorites.

This is because, due to the Earth's proximity to the Sun, it was thought that the temperature would have been too high for ice to have combined with rock and dust during the Earth's formation.

Now however, a new study by CRPG researcher Laurette Piani and colleagues has cast doubt on this idea by measuring the hydrogen content of certain types of meteorites.

The meteorites in question - known as enstatite chondrites - were chosen because their chemical make-up is much the same as the material that came together to form the Earth 4.5 billion years ago.

Surprisingly, they were found to contain quite a significant amount of hydrogen - enough to ensure that the newly formed Earth had more than enough water to cover the planet's surface.

"I was happy because it makes it nice and simple," said NASA planetary scientist Anne Peslier.

"We don't have to invoke complicated models where we have to bring material, water-rich material from the outer part of the solar system."

"So here, we just don't need Jupiter. We don't need to do anything weird. We just grab the material that was there where the Earth formed, and that's where the water comes from."

Source: NPR.org | Comments (4)


Tags: Earth, Water


Recent comments on this story
Comment icon #1 Posted by acute on 28 August, 2020, 11:41
Rain, of course! Duh.....
Comment icon #2 Posted by Rolci on 29 August, 2020, 1:10
Phew... that explains all the seas on the Moon, the thick oxygen atmosphere of Venus and all those oceans of ice on Mars and most major moons in the solar system. Great theory!
Comment icon #3 Posted by pallidin on 29 August, 2020, 16:46
Yeah, it seems to me oddly exceptional that Earth ended-up as it did... or maybe I just don't know enough about our solar system's early years.
Comment icon #4 Posted by docyabut2 on 7 September, 2020, 22:47
thought earth was once a snowball https://newatlas.com/snowball-earth-sturtian-glaciation/48389/  


Please Login or Register to post a comment.


  On the forums
Forum posts:
Forum topics:
Members:

6774747
282021
185954

 
117-year-old becomes third-oldest person ever
9-21-2020
Kane Tanaka - the oldest person in Japan - has reached a grand old age despite a penchant for fizzy drinks.
Pentagon has a zombie outbreak defense plan
9-21-2020
It turns out that there is a genuine plan in place to defend the United States in the event of a zombie apocalypse.
'Venus is a Russian planet' claims space chief
9-20-2020
Dmitry Rogozin made the rather bizarre claim while speaking to reporters at an exhibition last week.
32-year-old man looks like a 14-year-old boy
9-20-2020
Denis Vashurin is something of an online celebrity in Russia thanks to his bafflingly youthful appearance.
Stories & Experiences
Ghost following me
9-18-2020 | Iowa
 
Mysterious glowing cube
8-23-2020 | Alabama
 
Black blob in my room/bed
7-23-2020 | Powell,TN U.S.
 
Transparent levitating ball
7-14-2020 | Santa Rosa, California
 
 
 
Grim reaper-like visitation
6-16-2020 | Canada
 
My monster catfish story
6-15-2020 | Dallas texas
 
Orb of light in room
5-9-2020 | USA/Texas/Waco
 
Not sleeping alone
5-9-2020 | Los Angeles
 

         More stories | Send us your story
Featured Videos
Gallery icon 
NASA studies underwater 'white smoker' vents
Posted 4-17-2020 | 3 comments
Hydrothermal vents on the ocean floor can teach us about possible habitats on other worlds.
 
10 strange things about our solar system
Posted 3-17-2020 | 0 comments
A look at some of the most mysterious things about our solar system.
 
Lizzie - Scotland's other loch monster
Posted 3-8-2020 | 0 comments
Amelia Dimoldenberg investigates the Loch Ness Monster's neighbor.
 
 View: More videos
 
Top   |  Home   |   Forum   |   News   |   Image Gallery   |  Columns   |   Encyclopedia   |   Videos   |   Polls
UM-X 10.712 Unexplained-Mysteries.com (c) 2001-2020
Terms   |   Privacy Policy   |   Cookies   |   Advertise   |   Contact   |   Help/FAQ