Organic molecule - A molecule containing carbon
Outflow channel - A Martian valley with few tributaries probably formed by the sudden melting and runoff of sub-surface water ...
From organic molecules to protocells
The question "How do simple organic molecules form a protocell?" is largely unanswered but there are many hypotheses. Some of these postulate the early appearance of nucleic acids ("gene
Gene ...
organic molecules,
mineral deposits,
possible microscopic fossils of bacterialike organisms that lived on Mars more than 3.6 billion years ago.
Tiny structures in the rock resembled single-celled terrestrial bacteria.
4. Organic molecules important for life could have reached Earth's surface via comets. (Hint)
5. Organic molecules are known to exist only on Earth. (Hint) ...
Just as the organic molecules in the bodies of living organisms contain energy converted by photosynthesis from the energy of the Sun, so do the molecules of fossil fuels.
H2CO -- An organic molecule, the first polyatomic molecule to be discovered in interstellar space (in 1969). In 1973 It was discovered in two external galaxies.
Formamide ...
CH3OH -- An organic molecule (also called methyl alcohol) discovered in interstellar space in 1970. More rotational lines have been observed astronomically for it than for any other molecule. [H76]
Methylamine ...
As of 2003 however, most experts agree that these are not indicative of life, but may instead be formed abiotically from organic molecules.
The primary science goals are to investigate the temperature structure of Titan's atmosphere; examine the spatial distribution of Titan's minor atmospheric components, especially organic molecules; ...
Researchers at Stanford University used a laser mass spectrometer -- the most sensitive instrument of its type in the world - to look for the presence of the common family of organic molecules called PAHs.
The formation of complex organic molecules in Jupiter's atmosphere is of great interest in the study of the origin of life.
The CNM is made up of cooler hydrogen clouds at temperatures less than a few hundred kelvins, and molecular clouds containing a wide variety of molecules (H2, CO, water, and organic molecules) at very cold temperatures -- between 3 and 50 kelvins.
Other organic molecules have been detected in its atmosphere. They are formed from sunlight interacting with the atmospheric nitrogen and methane. Some of the organic molecules then settle down to the surface as very dark deposits.
"Organic molecules that are able to survive include polycyclic aromatic hydrocarbons (PAHs) that are seen in the infrared spectrum of distant galaxies.
It has previously been believed that our Solar System began from a cloud of simple molecular gas, and only as Earth evolved did complex organic molecules form.
The presence of complex organic molecules-basic ingredients for life-was detected by Galileo on the surfaces of Callisto and Ganymede.
Furthermore, the fact that organic molecules can be either hydrophobic (repelled by water) or hydrophilic (soluble in water) creates the ability of organic compounds to orient themselves to form water-enclosing membranes.
The simplest form of an organic molecule is the hydrocarbon-a large family of organic molecules that are composed of hydrogen atoms bonded to a chain of carbon atoms.
Only very small amounts of carbon compounds, organic molecules, were found. This reduces the possibility that any kind of exotic life forms may be found in the Jovian atmosphere. In addition, almost no water was detected.
Polycyclic aromatic hydrocarbons (PAHs) are a class of very stable organic molecules. They are flat molecules made only of carbon and hydrogen atoms. PAH molecules are quite common and highly carcinogenic.
toxic arsenic, but possibly use arsenic as a replacement for phosphorous, an element needed by every other known Earth-based life form. The result is surprising -- and perhaps controversial -- partly because arsenic-incorporating organic molecules ...
But life might occur where other liquids substitute for water, and in planetary environments where organic molecules are briefly exposed to liquid water and then preserved.
Among these research investigations will be the important study of water, ices and organic molecules.
Fischer-Tropsch reaction: Production of organic molecules by the addition of hydrogen to carbon monoxide aided by a suitable catalyst.
Comets are often called "dirty snowballs", because they are made up of ice (both water and gas), dust, and organic molecules.
primordial soup: The rich solution of organic molecules in Earth's first oceans.
prominence: Eruption on the solar surface; visible during total solar eclipses.
A purple layer of haze encircles Titan, the largest moon of Saturn, in this view from the orbiting Cassini spacecraft. Titan's dense, cold atmosphere is topped by organic molecules.
The surface of Mars is cold and bombarded with ultraviolet radiation from
the Sun. As a result, superoxide ions have formed on the surface of mineral
grains, which might decompose organic molecules formed on Mars or
deposited there by meteorites.
Some accretion models of the solar system suggest that an early cometary bombardment of the Earth may have played a major role in the formation of the atmosphere and the oceans. In addition, comets may have supplied the organic molecules needed for ...
standard formulas that balance the sunlight absorbed and the heat radiated, Marcy and Butler calculated the temperature of the planet at about 85 degrees Celsius (185 degrees Fahrenheit), cool enough to permit water and complex organic molecules to ...
Debris disks, the swarms of dust, gas, and rocks around stars, are suspected also to contain craggy ice chunks filled with frozen water, gas, and possibly even organic molecules -- the astrochemistry of life.
In hopes of unmasking more evidence, astronomers are searching for amino acids and other complex organic molecules in the cold, molecular gas found in some regions of our own Milky Way Galaxy. One such region is Sagittarius B.
 See also: Molecule, Earth, Light, Time, Atmosphere
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