Sentences with phrase «organic molecules form»

That radiation could make ice act like a liquid and help organic molecules form in space.

It started with a fairly fundamental study of polymers, the long chains that certain organic molecules form.

If this happens in space, this liquidlike behavior could help organic molecules form at the edges of infant planetary systems.

During an impact, clay could have trapped substantial amounts of the organic molecules formed in the same event, and then settled as marine sediment, the researchers say.

Not exact matches

Matter does not control or direct itself, yet science as it progresses is gradually uncovering a sort of organic unity within the universe in which atoms become molecules, molecules link to form chemicals that form proteins, these link to form DNA, simple life forms evolve into more complex life forms, and so on.

Matter does not control or direct itself, yet science describes a sort of organic unity within the universe in which atoms become molecules, molecules link to form chemicals that form proteins, these link to form DNA, simple life forms evolve into more complex life forms, etc..

Even more damning to the theory, is that even if those elements would become «complex» within themselves, that they would find other «complex structures» that were chemically attractive and form even the most rudimentary organic building blocks of the far, far more complex amino acids needed to create a very, very simple RNA molecule.

I am not one of those and therefore, I can not form molecules which may become organic, and which may eventually — with added energy from solar rays on a planet which is capable of supporting it — evolve» endless form most beautiful and most wonderful.»

«What we have described as globalization is remarkably close to Teilhard de Chardin's planetization, in which «[mankind, born on this planet and spread over its entire surface, come [s] gradually to form round its earthly matrix, a single, major, organic unity, enclosed upon itself.4 Thus the globalization of humankind could lead to the formation of a new kind of living entity — a social organism — on the same cosmic principle as that by which atoms join to form molecules, molecules join to form mega-molecules, mega-molecules unite to form living cells, and innumerable cells constitute an organism.

First the vitalization of matter, associated with the grouping of molecules; then the hominization of Life, associated with a super-grouping of cells; and finally the planetization of Mankind, associated with a closed grouping of people: Mankind, born on this planet and spread over its entire surface, coming gradually to form around its earthly matrix a single, major organic unity, enclosed upon itself; a single, hyper - complex, hyper - centrated, hyperconscious arch-molecule, co-extensive with the heavenly body on which it was born.

In the early 1970s, astronomers discovered that space was full of complex organic molecules, some of them forming part of the comets and meteorites that occasionally crash - land on Earth.

«Rotating ring of complex organic molecules discovered around newborn star: Chemical diversity in planet forming regions unveiled.»

These saturated organic molecules are formed in interstellar space and are preserved on the surfaces of dust grains.

Or perhaps, he says, formation models need to be adjusted to make it easier for larger building blocks to grow in the outer solar system where comets form and where ice and organic molecules could assist in the sticking.

One of those studies, led by Brown geologist Peter Schultz and published last year, found organic molecules and even plant matter entombed in glass formed by an impact that occurred millions of years ago in Argentina.

It is thought that as the Solar System formed 4.6 billion years ago, some of these organic molecules were transported from interstellar space to the planet forming disk.

The Methods: Photochemical modeling by a Caltech team indicates that ethane, a hydrocarbon detected on Titan by both of the Voyager spacecraft and the European Infrared Space Observatory, is created when solar ultraviolet light breaks down methane, a minor component of Titan's nitrogen - rich atmosphere, into a stew of organic molecules that form a dense orange - brown smog.

Astronomers studying a nearby dwarf galaxy have detected large organic molecules, suggesting that the basic chemical building blocks of life can form in places much more primitive than our own galaxy.

In two star - forming regions of the galaxy, ALMA picked up signals emanating from three complex organic molecules, including dimethyl ether and methyl formate, which had not previously been detected outside our own galaxy.

This liquid - like ice may enhance the formation of organic compounds including prebiotic molecules and the accretion of dust to form planets.

Toyohashi University of Technology researchers led by Associate Professor Shibatomi developed new catalytic reaction to produce chlorine - containing organic molecules in isomerically pure (left - or right - handed) form

On reaching the surface, methane can react with other organic molecules to form complex chemistry.

Volcanic plumes were ideal crucibles for sparking stable nitrogen to form reactive compounds that led to the first organic molecules, chemists report in the 15 August Geophysical Research Letters.

One chemist has a new strategy to scan for life on other worlds: bypass organic chemistry in favour of any molecules too complicated to form spontaneously

In a private letter, Miescher argued that the various forms of organic molecules were sufficient for «all the wealth and variety of hereditary transmission [to] find expression just as all the words and concepts of all languages can find expression in 24 to 30 alphabetic letters.»

Their mycelia exude enzymes and acids that turn rock into biologically accessible minerals and unravel the long - chain molecules of organic matter into digestible form.

The pattern, observed in a surface architecture just one molecule thick, was formed by self - assembly of linear organic linkers, imaged as rods, and lanthanide cerium centers, visualized as bright protrusions.

The new - generation microporous material designed at Dartmouth is the result of chemically stitching small organic molecules to form a framework that scrubs the isotope from water.

Taking their cue from nature, where structurally well - defined biopolymers are the norm, e.g. in DNA and genes where slight variations to the order of a small number of organic molecules gives rise to the diverse spectrum of life, they have developed a self - sorting strategy that regulates the order molecules take when forming long chain polymers.

Recently Berkeley Lab scientists used this method to calculate the absorption spectrum and confirm what several experimental results have been hinting — that the element berkelium breaks form with its heavy element peers by taking on an extra positive charge when bound to a synthetic organic molecule.

«This is supporting the idea that all these organic molecules can form in the ice, and might also be present in comets.»

Known for their exceptional porosity that enables the trapping or transport of molecules, metal - organic frameworks (MOFs) take the form of a powder, which makes them difficult to format.

The heterotrophs receive the organic carbon they need to grow from the anammox bacteria in the form of several specific molecules, the researchers discovered in the study.

Hayes and his colleagues looked at organic compounds from sediments formed between 1.8 billion and 550 million years ago, and found that simple hydrocarbons from the sediments contained more carbon - 13 than more complex organic molecules.

As the Earth formed 4.5 billion years ago, the surface was hot and violent, and probably evaporated organic molecules before they could combine to form the first cells, Weaver says.

Photosynthesis allows them to take in the latter directly from the air, but they have to procure nitrogen through their roots in the form of organic molecules like ammonia or urea.

These complex organic molecules, two forms of cyanide and one chemically related compound, likely formed after the protoplanetary disk collapsed, the researchers say.

At present, most instruments on astrobiology missions look for habitable conditions, small organic molecules and other «biosignatures» that generally could not be formed without life.

A typical MOF consists of a metal oxide center surrounded by organic molecules that form a highly porous three - dimensional crystal framework.

Water locked away in rocks for 1.5 billion years reveals conditions were right for complex organic molecules to form in deep sea hydrothermal vents

Philae will also look at complex organic molecules thought to be precursors to life, particularly whether their form is the left - handed or right - handed mirror image.

Comets contain abundant organics — carbon - based molecules that are not necessarily formed from life.

Although Hicks's team could not determine the exact structure of the molecules or how they formed, they found that, in this case, each organic molecule ended up with two nickels.

Unlike microcrystals, for example, the tubules have complex forms — often observed abruptly changing direction to avoid intersecting each other, in a manner consistent with tunneling microbial behavior — and contain organic molecules associated with biological activity; the Ries tubules are also similar to fossil traces of microbes found in volcanic glass.

Even the simplest life forms incorporate two amazingly complex types of organic molecules: proteins and nucleic acids.

The pools swelled when rain fell, but when they evaporated, the organic molecules in them became more concentrated, forming films like cell membranes, or joining into longer chains like strands of RNA.

Food gives us nutrients like nitrogen as parts of complex organic molecules, but our digestive system strips them down into the basic mineral form that plants need — so «we have done half of the job,» Jönsson says.

These have provided insight into the roles that marine bacteria, archaea, viruses and eukaryotic microbes have as global primary producers that provide nutrition at the base of the food chain; remineralization (the transformation of organic molecules into inorganic forms); and the deposition of carbon on the sea floor.

The morphologies of the tubules are inconsistent with known mineralogical crystallization mechanisms, and combined with evidence of organic molecules suggest that these tubules can not be formed through purely abiotic processes.

In addition to water, organic molecules, which could have been deposited on the surface by crashing comets, somehow would have to get through the thick shells of ice for life to form, a situation that puts Saturn's geyser - spewing moon Enceladus at the top of Nimmo's list of potential spots for life.