Sentences with phrase «rich atmosphere in»

c.) Was predicted in Jupiter's He - rich atmosphere in 1983 [«Solar abundances of the elements,» Meteoritics, vol.

e.) Confirmed in Jupiter's He - rich atmosphere in 1995 [«Isotope ratios in Jupiter confirm intra-solar diffusion», Meteoritics and Planetary Science 33, A97, abstract 5011 (1998)-RSB-.

Already billions of years ago, Methanosarcinales archaea might have abundantly thrived under the methane - rich atmosphere in the ferruginous (iron holding) Archaean oceans, 4 to 2.5 billion years ago.

Not exact matches

On other worlds it is conceivable that an original atmosphere rich in hydrogen cyanide would have produced other organic building blocks.

Particularly well - suited for couples seeking quality together time, this excursion offers an elegant sojourn through the heart of Napa Valley in a refined, history - rich atmosphere befitting the lush countryside through which it passes.

Now, Dr Breeze and colleagues have used a synthetic diamond grown in a nitrogen - rich atmosphere to create a new maser that operates continuously.

Miller tested the hypothesis that life's chemical building blocks were formed when Earth had an atmosphere rich in methane, ammonia, water, and hydrogen.

These days the Martian atmosphere is thin and about 95 per cent CO2, but scientists think that 3 or 4 billion years ago the planet's gassy envelope was much thicker and even richer in carbon, making its surface warm enough to support liquid water — and possibly life.

On the other hand, the upper troposphere is relatively rich in O3 and NOx from natural sources such as downward transport from the stratosphere and lightning; convective overturning conveys the O3 and NOx toward the Earth's surface where these components are more efficiently removed from the atmosphere.

First, planetary scientists suspect that cyanide was abundant on early Earth, deposited here by comets or created in the atmosphere by ultraviolet light or by lightning (once the atmosphere became oxygen rich, 2.5 billion years ago, the process would have stopped).

They found the mantle was rich in heavy isotopes of krypton, while the atmosphere is rich in its lighter isotopes.

In particular, they are looking at the planet as it transits, seeking a telltale broadening of its planetary shadow due to starlight being absorbed by a hydrogen - rich atmosphere.

While oxygen is believed to have first accumulated in Earth's atmosphere around 2.45 billion years ago, new research shows that oceans contained plentiful oxygen long before that time, providing energy - rich habitat for early life.

Titan, the largest of Saturn's more than 60 moons, is the other body in our solar system with a nitrogen - rich atmosphere that resembles ours.

GENE families involved in respiration and photosynthesis arose in a short evolutionary burst that began nearly a billion years before Earth's atmosphere became rich in oxygen.

Earth's atmosphere differs from the atmospheres of most other rocky planets and moons in our solar system in that it is rich in nitrogen gas, or N2; Earth's atmosphere is 78 percent nitrogen gas.

They build up a solid core five to 10 times the mass of Earth — quickly enough that the disk remains gas - rich and the core can pull in a thick atmosphere, producing a gas giant like Jupiter.

But faster accretion and a gas - rich disk raise their own problem: The super-Earths ought to pull in a thick atmosphere once they exceed a certain size.

Phytoplankton, tiny photosynthesizing organisms that bloom in the nutrient - rich waters of the Southern Ocean, suck up carbon dioxide from the atmosphere.

Higher lake temperatures may speed the conversion of carbon - rich organic matter in lake sediments into methane and carbon dioxide, gases that once released into the atmosphere could exacerbate global warming.

«As the climate gets warmer, the thawing permafrost not only enables the release of more greenhouse gases to the atmosphere, but our study shows that it also allows much more mineral - laden and nutrient - rich water to be transported to rivers, groundwater and eventually the Arctic Ocean,» explained Ryan Toohey, a researcher at the Interior Department's Alaska Climate Science Center in Anchorage and the lead author of the study.

The dark deposits in the channels and lowlands are most likely a tar that precipitated out of the hydrocarbon - rich atmosphere.

A hydrogen - rich atmosphere could cause such close - in planets to overheat because of the greenhouse effect, so its absence supports the idea that some of these planets may have habitable conditions.

The impact of water - rich asteroids or comets onto a planet or white dwarf results in the mixing of hydrogen and oxygen into the atmosphere.

There are many white dwarfs that hold large amounts of hydrogen in their atmospheres, and this new study suggests that this is evidence that water - rich asteroids or comets are common around other stars than the Sun.»

We live in an oxygen - rich atmosphere, and radicals, particularly reactive oxygen species (ROS), are natural by - products of respiration.

In these areas, deep ocean waters that are naturally rich in carbon dioxide are upwelling and mixing with surface waters that are absorbing carbon dioxide from the atmospherIn these areas, deep ocean waters that are naturally rich in carbon dioxide are upwelling and mixing with surface waters that are absorbing carbon dioxide from the atmospherin carbon dioxide are upwelling and mixing with surface waters that are absorbing carbon dioxide from the atmosphere.

Our planet's early atmosphere was rich in methane and carbon dioxide and had only very low levels of O2.

In four different observations, Hubble saw no sign of hydrogen - rich atmospheres around three of the worlds, de Wit and colleagues report in Nature AstronomIn four different observations, Hubble saw no sign of hydrogen - rich atmospheres around three of the worlds, de Wit and colleagues report in Nature Astronomin Nature Astronomy.

Researchers observed that roughly 5,000 years ago, thermokarst lakes in ice - rich regions of North Siberia and Alaska began cooling, instead of warming the atmosphere.

One science objective, agency officials say, could be to study Venus's carbon dioxide — rich atmosphere to glean insights into the buildup of the greenhouse gas in our planet's atmosphere.

Or the 2003 observations were in error, and a few ppb of methane are lingering in the air from volcanic eruptions or the ultraviolet irradiation of organic - rich cosmic dust drifting into the atmosphere.

In July 2020, the oil - rich nation aims to launch a spacecraft called Hope that will orbit the Red Planet and probe its atmosphere from top to bottom, beaming back «the first holistic view of the entire dynamics of the lower atmosphere of Mars,» says Sarah Amiri, Hope's science lead.

Even though many of the planets orbit their stars very closely and have high temperatures, which in turn causes their hydrogen - rich atmospheres to expand and a fraction of the gases to escape the planet over time, it's unlikely that the planets will lose enough of their atmosphere to become rocky bodies like Earth, the researchers report online today in the Monthly Notices of the Royal Astronomical Society.

But a new study suggests the atmosphere was not as rich in carbon dioxide as had been thought.

In Earth's geological record, the appearance of high concentrations of manganese oxide minerals is an important marker of a major shift in our atmosphere's composition, from relatively low oxygen abundances to the oxygen - rich atmosphere we see todaIn Earth's geological record, the appearance of high concentrations of manganese oxide minerals is an important marker of a major shift in our atmosphere's composition, from relatively low oxygen abundances to the oxygen - rich atmosphere we see todain our atmosphere's composition, from relatively low oxygen abundances to the oxygen - rich atmosphere we see today.

For example, they revealed that the west side of Pluto's «heart» is rich in carbon - monoxide ice, unlike the rest of the dwarf planet, and they announced that the probe had detected Pluto's thin, nitrogen - dominated atmosphere out to a distance of 1,000 miles (1,600 km) from the surface.

Alien as this may seem, Titan's atmosphere — rich in nitrogen and organic compounds — may be similar to the atmosphere of early Earth.

«It required an oxygen - free atmosphere that was temporarily very rich in hydrogen sulphide — the smell of rotten eggs.»

The earth's primordial atmosphere was, like the rest of the universe, rich in hydrogen and in hydrogen compounds.

Soon thereafter, Kashefi and Brown set to work designing a half - experiment, half - art - exhibit that exposes C. metallidurans to gold chloride in a hydrogen - gas - rich atmosphere that serves as a source of food.

Mangrove soil is rich in carbon, but it's released to the atmosphere if they are converted to shrimp farms

«The weaker overturning circulation brings less naturally CO2 - rich deep waters to the surface, which limits how much of that gas in the deep ocean escapes to the atmosphere.

Earth's oxygen - rich atmosphere emerged in whiffs from a kind of cyanobacteria in shallow oceans around 2.5 billion years ago, according to new research from Canadian and US scientists.

The theory assumes that the earth's atmosphere was poor in carbon dioxide and water vapor during the earth's cool glacial periods, and rich in these gases during hot periods.»

Mars's atmosphere is unusually rich in carbon monoxide, which microbes on Earth can convert to carbon dioxide to yield energy.

As the particles journeyed around Earth, the lighter hydrogen particles were lost in collisions with the atmosphere, leaving an oxygen - rich plasma.

The forum was also manipulated so that some saw a civil discussion, whereas others were greeted with an atmosphere rich in offensive words, sarcasm, insults and personal attacks — and many exclamation marks.

But the recent discovery of rocks with manganese oxide in them proves that the martian atmosphere was once even richer with oxygen than previously thought, New Scientist reports.

Life first began on Earth in a carbon dioxide — rich atmosphere.