The question of the origin of water on Earth has been debated for a long time. Researchers are now uncovering new clues that point to a somewhat surprising potential source: the Sun!
our earth is not aloneNS , But it still has one feature that the others don’t have: it’s Over 70%! And researchers have long questioned its origins. Today (Scotland) argues that , composed exclusively of ions , on the surface of tiny dust particles, could have formed a water, which then accumulated on Earth Which would have crossed the trajectory of our planet early in the history of our solar system.
Remember that a hypothesis that explains the presence of water on Earth involvesType C – carbonaceous asteroids, like 75% of asteroids in the late stages of our planet’s formation. But the isotopic footprints of these objects do not quite match. Another source seems necessary.
#this day In 2005, the Hayabusa probe made the first sample collection of the asteroid Itokawa. JAXA confirmed the content of olivine, pyroxene, plagioclase and iron sulfide in the samples, as well as that the samples were ~8Myr and that Itokawa was part of a larger asteroid. pic.twitter.com/9N1rxivyjD
— marsonaut (@PerAsperaAdMars) November 25, 2021
water for space missions
So the researchers turned to an S-type asteroid – asteroids made mostly of silicate. and they did a thorough analysis of a few grams of dustBrought back to Earth in 2010. Thanks to the atomic tomographic probe, which makes it possible to observe spatial distribution of In one sample, scientists actually had the first 50 . had access to from the surface of these dust grains. Per cubic meter of them will be equal to 20 liters of water. Water is isotopically lighter than what can come on Earth Type C asteroid. The mark looks good.
The researchers also hope that their work will be useful, Because they show that the same weathering process that created water on Itokawa probably happened on planets without atmospheres. Like this may be able to collect fresh water directly from the dust on the surface of , for example.
Analyst. Amateur problem solver. Wannabe internet expert. Coffee geek. Tv guru. Award-winning communicator. Food nerd.