Sentences with phrase «oxygen atmosphere in»

And we exist because in eating the carbon dioxide during photosynthesis the oxygen in it is released, how Earth got its oxygen atmosphere in the first place.

Not exact matches

The rover's Sample Analysis at Mars (SAM) instrument that analyzes the soil and atmosphere around the rover using a mass spectrometer, a gas chromatograph and a tunable laser spectrometer to detect oxygen and carbon isotopes in carbon dioxide and methane samples to see if they are biochemical in origin.

One possible strategy for making Mars habitable over the long term is to «terraform» it — manipulate its environment so, in the simplest terms, the planet warms up, ice turns into water, and plants can be introduced, which will convert the atmospheric carbon dioxide into oxygen, with the goal of creating a stable and breathable atmosphere.

Heaven is that planet 35000 light - years from earth, ten times as big made of hydrogen and oxygen for water, gold as atmosphere (yes we're taking the gold) But to desist as soul when given the chance in hell if you truly believe seems impassible for me to fathom.

And what about the entire ecological system of things, that works in harmony with us as humans for life to exist, from our atmosphere at 78 % nitrogen, 21 % oxygen down to the magnetosphere that comes from within the core of the earth and protects us from the sun's damaging electrically charged particles?

Before there were plants there was probably no oxygen, or very little of it, in the atmosphere.

The reason is that the proportion of oxygen in the atmosphere (21 per cent) is very much larger that the proportion of carbon dioxide (about 0.03 per cent).

In order to keep our Inglewood Organic Chicken products as fresh as possible, we opt to remove the oxygen from the packaging and thereby change the «air» or «atmosphere» surrounding the meat; without the use harmful additives.

We opt to remove the oxygen from the packaging and thereby change the «air» or «atmosphere» surrounding the meat; keeping the meat in a good condition without the use of harmful additives.

In principle, a controlled atmosphere high in carbon dioxide and low in oxygen content slows down the rate of respiration, which may extend shelf life of any respiring fruit during storagIn principle, a controlled atmosphere high in carbon dioxide and low in oxygen content slows down the rate of respiration, which may extend shelf life of any respiring fruit during storagin carbon dioxide and low in oxygen content slows down the rate of respiration, which may extend shelf life of any respiring fruit during storagin oxygen content slows down the rate of respiration, which may extend shelf life of any respiring fruit during storage.

The hypersonic vehicle would take oxygen from the atmosphere rather than carry it in the form of fuel oxidants.

There, the charged particles strike molecules in Earth's atmosphere that release photons of various colors (red hues come from oxygen, for example) and light up polar regions in frequent auroral displays.

In addition, plants also release oxygen to the atmosphere, which is subsequently used for respiration by heterotrophic organisms, forming a cycle.

Plentiful oxygen in a planet's atmosphere is one of the most obvious barcodes to look for in a planet's atmosphere across the light years, because it is one of the hardest things to make sans biology.

When hydrogen and oxygen combine in a planet's atmosphere, they can ignite into a ball of fire and then leave behind liquid water oceans that would be good for life

«And the transition seemed to occur right around the time that there were very large changes in ocean - atmosphere oxygen levels and just before the emergence of animals.»

Examining the distribution patterns of microfossils, Shen's Harvard colleagues have discovered that the marine eukaryotic algae of 1.5 billion years ago occupied only the ocean shallows and not the deeper basins, indicating a smaller oxygen concentration in the atmosphere than exists today.

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).

But at the same time, we also should recognize that even in the background, like wetlands, forest, healthy ecosystems and so on, are doing a lot for us, that, you know if they sent us a bill it will be a lot — one providing oxygen into the atmosphere.

If the process is done in a vacuum, the carbon forms on the surface as graphene; if it is done in oxygen, it forms GO; and if done in a humid atmosphere followed by a vacuum, it forms as rGO.

Visible from North Carolina to upstate New York, the eerie trails were created by five suborbital NASA rockets that soared to altitudes of 50 to 80 miles, where they released chemical tracers that reacted with oxygen in the thin upper atmosphere.

More plants meant more photosynthesis and still more oxygen in the atmosphere.

The spate of big hits at the end of the Archean coincides with the buildup of oxygen in the atmosphere and the evolution of the first multicellular organisms.

Because oxygen is critical to many forms of life and geochemical processes, numerous models and indirect proxies for the oxygen content in the atmosphere have been developed over the years, but there was no consensus on whether oxygen concentrations were rising, falling or flat during the past million years (and before fossil fuel burning).

By accounting for both CO2 and oxygen levels in the atmosphere, scientists have calculated that oceans and plants each absorb roughly one - quarter of humanity's CO2 emissions, leaving half to build up in the atmosphere.

Typically, oxygen breaks down methane rapidly, and it also seeps into rocks (like carbon dioxide), so for both gases to endure in an atmosphere, something — likely biological — must keep putting them there.

«Carbon dioxide and water in a planet's atmosphere would be signs that a planet might be rocky and habitable, while oxygen and methane would be strong indicators that it may harbor life,» Boss says.

We can thank them for oxygen in the atmosphere, oil in the lithosphere as well as dead zones in the oceans and now even a dead horse in France.

The presence of multiple chemicals such as methane and oxygen in an exoplanet's atmosphere is considered an example of a biosignature, or evidence of past or present life.

Curiously, the decline in atmospheric oxygen over the past 800,000 years was not accompanied by any significant increase in the average amount of carbon dioxide in the atmosphere, though carbon dioxide concentrations do vary over individual ice age cycles.

They become caught in powerful magnetic fields and are channeled into the upper atmosphere, where their interactions with gas particles, such as oxygen or nitrogen, set off spectacular bursts of light.

Stolper and his co-authors suggest that the extra carbon dioxide emitted due to declining oxygen concentrations in the atmosphere stimulated silicate weathering, which stabilized carbon dioxide but allowed oxygen to continue to decline.

Alice also documented a surprising lack of exposed water ice on the comet's surface and identified an extremely volatile, unexpected gas in the comet's atmosphere — molecular oxygen.

It wasn't possible to evolve complex life forms because there was not enough oxygen in the atmosphere, and there wasn't enough oxygen because complex plants hadn't evolved — It was only when land plants came about did we see a more significant rise in atmospheric oxygen.

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.

Almost all of the oxygen in Earth's atmosphere for the last 2 and a half billion years came from photosynthesis.

The increasing concentration of oxygen in the atmosphere eventually overwhelmed the control on oxygen and meant it could finally rise to the levels we are used to today.

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.

If scientists can collect and analyze samples of the terrestrial oxygen embedded in lunar soil, it could provide insights into how Earth's atmosphere has evolved over the eons.

After the Great Oxidation, and once plate tectonics pushed these sediments to the surface, they reacted with oxygen in the atmosphere for the first time.

The more oxygen in the atmosphere, the faster it reacted with this organic material, creating a regulatory mechanism whereby the oxygen was consumed by the sediments at the same rate at which it was produced.

Another is poor in oxygen - 16, and it wasn't clear where that came from, until the team looked at the data and compared this component to the ions in Earth's atmosphere.

If you heard an announcement that we're about 95 percent sure that some planet seems to have a substantial amount of oxygen in the atmosphere, so life is probably there — I'd be blown away by that sort of thing.

For a long time, there was the notion that finding oxygen and methane in a planetary atmosphere would be a smoking gun for life.

If Proxima b proves to have an atmosphere, Loeb and Kreidberg have also proposed using Webb to probe for the infrared signature of ozone in Proxima Centauri's glare as a possible sign that the planet's air is filled with oxygen — something that, on Earth, is mostly produced by life.

Like the biota * of Ediacara in Australia, whose emergence coincided with a sudden increase in oxygen levels in the atmosphere 800 million years ago, the appearance and diversity of the biota in Gabon corresponds to the first peak in oxygen observed between — 2.3 and — 2 billion years ago.

After that we have to build a powerful telescope that examines the planets around nearby stars and looks for water, carbon dioxide, and oxygen in their atmospheres — signs that they could support life.

They can tell from the oxygen in our atmosphere, the signal that it's transmitted into space for the past couple billion years.

But if pushed to the limit, it just might be able to provide the first indication of life — a telltale molecule, such as oxygen, in the planet's atmosphere — on a super-Earth circling another star.

«As in our own atmosphere, where ultraviolet sunlight breaks molecules apart, ultraviolet starlight can break water vapour in the atmospheres of exoplanets into hydrogen and oxygen.»