Space Rocks More delicate Than Once Thought
March 29th 2011 02:53
Category: Planets
Portion taken from a chondrite meteorites sample
CURRENT MOON
A group of researchers in England found geological evidence that supports the theory that the earliest form of rock were no more than carbonaceous fragile material. The study seems to support the idea that the first solid material in the Solar System was fragile and extremely porous.
Over time that took billions of years during a period of extreme turbulence the fragile material was compacted into harder material shortly after the birth of the Solar System. It is believed that this once fragile material formed the very building blocks that go to make up the rocky planets like Earth.
Much of the study is based on material obtained by meteorites found here on Earth in particular a group of meteorites called carbonaceous chondrite. This material is found in some asteroids.
The carbonaceous chondrite sample studied originated in the asteroid belt between Mars and Jupiter.
The study samples were taken from other carbonaceous chondrite meteorites samples found in other parts of the globe.
This particular sample yealded the information with the aid of an electron microscope. The microscopic dust particles collided with one another and stuck together, coalescing around larger grain particles that formed chondrules.
By using an electron back-scatter diffraction technique the dust fragments were found to be formed by
a group of individual micrometre-sized grain particles that had coalesced around the chondrule much like a fragile rocky skin.
It is studies like these that makes studying the early Solar System interesting.
We are just beginning to better understand the complex creation that took place from such humble origins. Our Earth and perhaps most of our Solar System formed from these once very tiny fragments the universal building blocks that may lie in distant galaxies forming other planets and Solar Systems beyond our realm.
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Comment by S.L.
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Comment by CarlCan
Astroearth
Camera Sense
I am not sure were your going with this. Planets do not necessarily come from Super Nove explosions.
They do however contribute to the material that travels with in the universe.
Stars do not last forever they are finite. A star has a shelf life and dies. The dying star may explode not all dying stars explode.if a star is large enough it can become a black hole, or nebule,quasar.
Stars do not as a general rule get trapped by other stars. A larger star can tear at another star’s mantle but not necessarily destroy it.
Comment by CarlCan
Astroearth
Camera Sense
Yes, I am very fond of geology.