Astronomers Find a Group of Water-rich Asteroids - by spacewriter
How asteroids were implanted into the Asteroid Belt during the growth and evolution of the early solar system. CourtesyThe general consensus today among planetary scientists is that much of Earth’s water got here by way of smaller bodies. They smashed together to make larger bodies that themselves crashed together to make our home planet. These dark, water-rich “leftovers” from the solar system’s formation had water “inclusions”.
These little worlds are also quite porous, which tells scientists they’re part of the original inventory of the solar system. “Shortly after the formation of the asteroids, temperatures were not high enough to convert them into a compact rock structure; they maintained the porous and primitive character typical of the outer ice planets located far from the sun,” explained Dr. Wladimir Neumann, a member of Prof. Trieloff’s team. That porosity also lends credence to their water-rich qualities.
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