Примери за използване на Early earth на Английски и техните преводи на Български
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While there are scientists who think RNA could have arisen spontaneously on early Earth, others say the odds of such a thing happening are astronomical.
Other researchers have described chemical reactions that might have enabled the phosphorylation of pre-biological molecules on the early Earth.
would have been easier to produce in the low-oxygen environment of early Earth, DasSarma said.
the egg" dilemma for the origins of life on early Earth.
But this early Earth atmosphere, dense with methane
We're in a vacuum chamber but we will be putting back in a gas that will simulate what the early Earth must have looked like.
For decades, scientists believed that the atmosphere of early Earth was highly reduced, meaning that oxygen was greatly limited.
Jen's high-powered experiment suggests comets may have bludgeoned early Earth one step closer to life.
Scientists believe that comets had“seeded” early Earth with some of the ingredients needed for life on Earth. .
CO2 to the methane, to simulate early Earth.
Certainly, there were molecules present on the early Earth, but they wouldn't have been these pure compounds that we worked with in the lab
It is an extraordinary find that helps paint a better picture of early Earth and the bombardment that modified our planet during the dawn of life,' said NASA scientist Dr David Kring.
The reactions we observed in our experiments have shown that the necessary prebiotic molecules were likely present on the early Earth and that the Earth was predisposed to phosphorylated biomolecules,” the researchers concluded.
The haze spreading over early Earth could have supplied the planet with more than 100 million tons of organic material annually,
since life somehow arose from a proverbial boiling pot of chemicals on early Earth.
To test their hypothesis, they built an early Earth model environment, an organic-rich aqueous
Primitive microbes that used retinal to harness the sun's energy might have dominated early Earth, thus tinting some of the first biological hotspots on the planet a distinctive purple color.
The scientists found that if the early Earth incorporated a rocky body like Mercury,
Because it took billions of years to create Earth's continents, less land existed on the early Earth, so seafloor weathering had a particularly significant regulatory impact on Earth's temperature and vice versa.
Primitive microbes that used retinal to harness the sun's energy might have dominated early Earth, DasSarma said,