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An international team of scientists from Curtin University's School of Earth and Planetary Sciences, the International Centre for Radio Astronomy (ICRAR), the Paris Observatory and more scoured the globe to find an answer. Published today in Nature Astronomy , researchers analysed close to 8500 meteoroids and meteorite impacts, using data from 19 fireball observation networks across 39 countries -- making it the most comprehensive study of its kind.
"What this research shows is many of these meteoroids don't even make it that far: they break apart from being heated repeatedly as they pass close to the Sun.
"The ones that do survive getting cooked in space are more likely to also make it through Earth's atmosphere."
Paris Observatory's Dr Patrick Shober said the findings reshape how scientists interpret meteorites collected so far.
"Carbon-rich meteorites are some of the most chemically primitive materials we can study -- they contain water, organic molecules and even amino acids," Dr Shober said.
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