Wednesday, July 17, 2019
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

Planetary collision made life on Earth possible


Posted on Thursday, 24 January, 2019 | Comment icon 9 comments

Our planet was involved in some major collisions billions of years ago. Image Credit: NASA / JPL-Caltech
The carbon and nitrogen that make up our bodies likely came from a planet that once smacked in to the Earth.
The early solar system was a particularly violent place, with cataclysmic collisions between protoplanets being a relatively common occurrence.

One such collision, which saw the Earth collide with an itinerant planet the size of Mars around 4.4 billion years ago, is believed to have created the debris which later coalesced in to the Moon.

Now according to scientists at Rice University in Texas, this violent collision may have also transferred volatile elements to our planet's surface - elements that would later be essential for life to develop.

To reach this conclusion, the researchers conducted experiments involving the same high temperatures and pressures that can be found deep inside a planet.

The goal was to determine exactly where many of Earth's key elements may have come from.

"From the study of primitive meteorites, scientists have long known that Earth and other rocky planets in the inner solar system are volatile-depleted," said researcher Rajdeep Dasgupta.

"But the timing and mechanism of volatile delivery has been hotly debated. Ours is the first scenario that can explain the timing and delivery in a way that is consistent with all the geochemical evidence."

"This study suggests that a rocky, Earth-like planet gets more chances to acquire life-essential elements if it forms and grows from giant impacts with planets that have sampled different building blocks, perhaps from different parts of a protoplanetary disc."

Source: The Guardian | Comments (9)

Tags: Earth, Moon, Life

Recent comments on this story
Comment icon #1 Posted by Reignite on 24 January, 2019, 12:34
It never ceases to amaze how we humans place our trust in a science whose scientists suggest theories having evidence found today explaining events from billions of years ago.
Comment icon #2 Posted by EBE Hybrid on 24 January, 2019, 13:48
I guess it makes more sense to develop educated hypothesis rather than accept that anything that we can't yet explain is a result of device intervention
Comment icon #3 Posted by Trenix on 24 January, 2019, 14:25
Remember, we can barely predict the weather within a few hours, but yet these scientists seem to believe they have have figured out how the earth was created millions of years ago. Science is great, once you stop accepting everything they say is fact and instead take it as an interesting idea.
Comment icon #4 Posted by Nnicolette on 24 January, 2019, 14:26
It's interesting how the story of tiamat has been around since before scienctists backed up the story, and yet its original source (sitchen) goes uncredited, called woo, and these translations are disregarded.
Comment icon #5 Posted by TripGun on 24 January, 2019, 15:34
I wonder if I take all the ingredients to make a cake and leave them in a room with the stove on set at at 350 for a billion years if I will have that cake. Seems like a silly question...Life is a billion times more complicated than a cake.
Comment icon #6 Posted by Essan on 24 January, 2019, 16:02
No, but if you take 100,000 sets of ingredients, and mix them up every day, who knows?   And that's just on one planet.   If you do the same on every other planet in every galaxy since the dawn of time ......   That's quite a lot of chances and it you only have to get it right once.
Comment icon #7 Posted by TripGun on 24 January, 2019, 18:49
But life from no life? Abiogenesis is not real...
Comment icon #8 Posted by bison on 24 January, 2019, 20:02
If life didn't start from no-life, at some point in time, just how is it that it exists now?
Comment icon #9 Posted by Essan on 24 January, 2019, 22:09
Life is just chemical reactions.   Chemical reactions have always happened.   (Note: I am not saying that the Sun is a living entity )


Please Login or Register to post a comment.


  On the forums
Forum posts:
Forum topics:
Members:

6499821
272837
180975

 
New details of Elon Musk's Neuralink revealed
7-17-2019
The firm aims to make it possible for humans to interact with machines through a brain-computer interface.
UK divers encounter gigantic, rare jellyfish
7-17-2019
Two divers exploring the waters off the coast of Cornwall, England came across something rather spectacular.
Did the Pentagon attempt to weaponize ticks ?
7-16-2019
Congress has ordered the Pentagon to reveal whether or not it is responsible for spreading Lyme disease.
Man spends five days sitting on a toilet
7-16-2019
Eager to earn his place in the Guinness Book of Records, one Belgian man sat on a toilet for 116 hours.
Stories & Experiences
 
Spontaneous exorcisms
7-5-2019 | Ontario
 
A call from 'The Lobster'
7-5-2019 | Russia
 
Witnessing tree spirits
6-25-2019 | Ontario
 
I didn't move my blankets
6-25-2019 | Spring, TX
 
Bitten by a spirit?...true story
6-15-2019 | Dallas, Tx
 
Bed shaking
6-15-2019 | India
 
Red floating lights
6-15-2019 | Canada
 
A night-time encounter
5-28-2019 | Missouri
 
UFO flies over home
5-28-2019 | Ypsilanti, Mi
 

         More stories | Send us your story
Featured Videos
Gallery icon 
How do move a 13-ton Sphinx ?
Posted 7-3-2019 | 1 comment
A look at how the Sphinx of Ramses II was moved at Philadelphia's Penn Museum.
 
'Deleting' disease using CRISPR
Posted 6-15-2019 | 5 comments
A look at science's goal of eliminating genetic diseases using gene-editing techniques.
 
What happens when lava meets ice ?
Posted 5-18-2019 | 2 comments
This intriguing experiment reveals just what happens when you pour lava on to ice.
 
 View: More videos
 
Top   |  Home   |   Forum   |   News   |   Image Gallery   |  Columns   |   Encyclopedia   |   Videos   |   Polls
UM-X 10.712 Unexplained-Mysteries.com (c) 2001-2019
Terms   |   Privacy Policy   |   Cookies   |   Advertise   |   Contact   |   Help/FAQ