The Structure of Ice in Space Is Neither Order nor Chaos—It’s Both
Ice is a key component of the universe. There are frozen water molecules on comets, moons, exoplanets and in your drink when you refresh summer heat. However, under the microscope, all the ice is not the same, even if it is made of the same components.
The internal structure of the Earth’s ice is a cosmological oddity. Its molecules are arranged in geometric structures, generally hexagons which are repeated each other. The ice on earth is formed in this way because of the temperature and the pressure of our planet: the water freezes slowly, which allows its molecules to organize in crystals.
But the ice that forms in space is different due to the conditions – water exists in vacuum and is subject to extreme temperatures. Space ice, therefore, would be amorphous, devoid of a distinct organizational structure as on earth.
This presents a challenge for scientists trying to understand the training of planets and the generation of life. Do not fully understand the dynamics of amorphous ice in space has training effects. For example, not knowing exactly how spaces in space water make it difficult to estimate the proportion of water in other solar systems.
Researchers therefore study space ice to better understand how frozen water behaves away from the earth. Ice samples of comets, asteroids and other debris of the solar system would be useful, but until they can be captured, scientists try to understand space ice with computer models and ice simulations on earth. The more they study it, the more it reveals surprises.
A recent report, published in the review Physical Review B, postulates that the amorphous ice which abounds in the universe has a kind of order. Paper theorizes that it is probably composed of structured fragments – crystallized regions, as on earth, but only about 3 nanometers wide – aroused by chaos.
