Recent study says that the old belief that planet earth is born dry and
water was later delivered into it by a comet or asteroid is no more true but
rather water is already there on our planet since it is formed or born and that
water comes within our solar system and not outside.
“A
new study finds that Earth's water may have come from materials that were
present in the inner solar system at the time the planet formed -- instead of
far-reaching comets or asteroids delivering such water. The findings published
Aug. 28 in Science suggest that Earth may have always been
wet.” (Science Daily)
In the recent study, a meteorite called “enstatite chondrites” is the
deliverer or source or origin of earth’s water since earth was formed or born
and this meteorite is within the solar system. It is also said that “enstatite chondrites” is the building blocks
of planet earth because of isotopic similarities of both or of “enstatite chondrites” and planet earth.
“Enstatite chondrites are entirely composed of material from the inner
solar system -- essentially the same stuff that made up the Earth originally…… But
their isotopic similarity to Earth make them particularly compelling. Enstatite
chondrites have similar oxygen, titanium and calcium isotopes as Earth, and
this study showed that their hydrogen and nitrogen isotopes are similar to
Earth's, too. In the study of extraterrestrial materials, the abundances of an
element's isotopes are used as a distinctive signature to identify where that
element originated……."If enstatite chondrites were effectively the
building blocks of our planet -- as strongly suggested by their similar
isotopic compositions -- this result implies that these types of chondrites
supplied enough water to Earth to explain the origin of Earth's water, which is
amazing!"…. “ (Science Daily)
“The paper also proposes that a large amount of the atmospheric nitrogen
-- the most abundant component of the Earth's atmosphere -- could have come
from the enstatite chondrites.” (Science Daily)
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| ENSTATITE CHONDRITE |
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