Social Media Sidebar

Announcement

Please sign up, comment on articles and bring your friends!

Current poll

PlanetTech is asking:

What do you think about our new web site?

Love it, indeed
Really good solution
Same as old one
The old one was better
This is a new option

Quote of the day

People say we're running out of energy. That's only true if we stick with these old 19th century technologies. We are awash in energy from sunlight.

 

Ray Kurzweil

 

Earth's Water Is Older Than The Sun

RATE THIS! +31
Posted in Science on 26th Sep, 2014 10:09 PM by AlexMuller

Since water is one of the vital ingredients for life on Earth, scientists want to know how it got here. One theory is that the water in our solar system was created in the chemical afterbirth of the Sun. If that were the case, it would suggest that water might only be common around certain stars that form in certain ways. A new study suggests that at least some of Earth’s water actually came from interstellar space. 

 
That’s certainly something to ponder the next time you drink a glass of water. But the discovery is also cool because it means water, and maybe life, may be ubiquitous throughout the galaxy. “If water in the early Solar System was primarily inherited as ice from interstellar space, then it is likely that similar ices, along with the prebiotic organic matter that they contain, are abundant in most or all protoplanetary disks around forming stars," study author Conel Alexander explained in a press release. 
 
The researchers concluded that a significant portion of Earth’s water came from interstellar space by looking at the relative abundance of hydrogen and deuterium. Deuterium is like hydrogen’s heavier brother. Both atoms have one proton in their nuclei, but deuterium contains an extra neutron, and it mostly forms under special conditions. In interstellar space, for example, water ice contains lots of deuterium, thanks to the freezing cold temperatures and ionizing radiation. Earthly water contains some deuterium, too, but in low quantities, up to 30 times less than interstellar water.
 
Looking at a water sample’s ratio of hydrogen to deuterium can tell you about what conditions were like when the water formed. But until now, scientists weren’t sure whether Earth's deuterium came from space, or whether it was cooked up in the birth of the Sun. 

Tags: waterEarthchemistrynaturelife

Read original article » Back to category

Comments

Author: Guest
Posted: 2014-09-27
+1
This is one very important topic - origins of water on Earth- as water is so closely linked to life. Implications of these findings claiming that water existed before the sun are important and imply that life forms are likely on other planets Reply
Author: Guest
Posted: 2016-07-21
+0
Där skulle jag gärna ha parkerat husvagnen ocksÃ¥, men nu är den i vintervila eftersom den största tiÃlsredsstl¤llelfen den största tiden av Ã¥ret är just detta att vara lärare! ♥ Reply


 

Recent headlines

  • Posted in Software on 2017-09-19 18:06:17
    China orders Bitcoin exchanges in capital city to close..read more
    Posted in Hardware on 2017-09-19 18:00:15
    LinkSpace is a Chinese startup that will try to make.....read more
    Posted in Medicine on 2017-09-19 17:54:24
    A Permanent Vaccine Against Tooth Cavity and Decay..read more
    Posted in Software on 2017-09-18 18:14:00
    China to become artificial intelligence 'world leader' by.....read more
    Posted in Science on 2017-09-18 18:10:24
    There's an Ocean Deep Inside the Earth..read more
Posted in Business on 2013-10-10 01:33
China is working towards a manned lunar mission in about.....read more
Posted in Business on 2013-10-20 07:17
Spacex says China is their main competitor for commercial.....read more
Posted in Software on 2013-10-20 06:43
Pirate Bay Browser Clocks 1,000,000 Downloads..read more
Posted in Medicine on 2013-10-10 02:10
Google reportedly investing hundreds of millions into new.....read more
Posted in Medicine on 2013-10-14 03:13
Endothelial Cells Can Repair and Regenerate Organs,.....read more
Posted in Science on 01.01.2010
Spacex says China is their main competitor for commercial.....read more
Posted in Science on 01.01.2010
Staring at Your Phone Could Be Making You Short Sighted..read more
Posted in Science on 01.01.2010
Oculus Rift virtual reality headset coming to mobile, but.....read more
Posted in Science on 01.01.2010
China is working towards a manned lunar mission in about.....read more
Posted in Science on 01.01.2010
Delivering drugs via nanoparticles to target mitochondria..read more

Recent Blog Posts

  • Posted by AlexMuller
    Scientists probe Neptune's depths to reveal secrets of icy.....read more
    Posted by AlexMuller
    New terahertz imaging approach could speed up skin cancer.....read more
    Posted by AlexMuller
    Rebutting the claim that antidepressants do not work..read more
    Posted by AlexMuller
    Artificial neural networks decode brain activity during.....read more
    Posted by AlexMuller
    Four Earth-sized planets detected orbiting the nearest.....read more

Login to your Account

Login to your PlanetTech Account here

Username:
Password:
Remember me
or

Create a New Account

You just need username and password

The following errors occured:
Username:
Email:
Password:
Verify password:
Remember me