Sentences with phrase «hydrothermal environments»

Life on Earth likely began in hydrothermal systems (environments where hot water reacts with rocks), and there is abundant evidence for many locations where hydrothermal environments exists on Mars at the time when life might have originated in similar environments on Earth.

These temperatures are typical of underground hydrothermal environments rather than surface waters.

«It is evocative of the deep - sea hydrothermal environments on Earth, similar to environments where life might be found on other worlds — life that doesn't need a nice atmosphere or temperate surface, but just rocks, heat and water.»

First author Edel O'Sullivan, now a PhD candidate in Switzerland, said: «Previous studies investigating the origin of life have focused on synthesis in hydrothermal environments.

«This site gives us a compelling story for a deep, long - lived sea and a deep - sea hydrothermal environment,» Niles said.

Not exact matches

The name Lokiarchaeota is derived from the hostile environment close to where it was found, Loki's Castle, a hydrothermal vent system located on the Mid-Atlantic Ridge between Greenland and Norway at a depth of 2,352 meters.

Biochemists have managed to synthesise 10 of them in experiments that simulate lifeless prebiotic environments, using proxies for lightning, ionising radiation from space, or hydrothermal vents to provide the necessary energy.

And the Nankai Trough sediments are starkly different from another high - temperature environment, the hydrothermal vents on midocean ridges.

In the third type of vent environment, «hydrothermal seeps,» much cooler (less than 30 - 60 degrees Celsius) water trickles out of lava flows interleaved with seafloor mud.

This is only the third hydrothermal system of its type that has been sampled, yet millions of similar environments exist in the deep sea.

Deep - sea organisms including mussels thrive in the extreme environments of hydrothermal vents and cold seeps which are characterised by high hydrostatic pressure, lack of photosynthesis - derived food, variable temperatures and high concentrations of toxic substances.

Each contained jumbles of DNA sequences collected from environments such as soil, the ocean, hydrothermal vents, industrial effluent, and cow and baboon faeces.

However, potent compounds from the marine environment, especially extreme surroundings such as hydrothermal vents or arctic regions only await to be unveiled which undoubtedly hold promises in the discovery of tyrosinase inhibition, thus opening new perspective for treatment of skin disorders as well as neurodegeneration related diseases.

Such reactions at hydrothermal vents and in other extreme environments on Earth produce high abundances of hydrogen, which some microbes use for food.

Given that the tubules seem to be associated with fractures and water - cooled margins within the rocks, the researchers propose that hydrothermal activity — the local circulation of heated water, common after impacts — could have allowed microbial colonization of the glass from the surrounding environment.

Lost Nucleotides Although Alexander S. Bradley's article «Expanding the Limits of Life» provides a fascinating account of the discovery of microbes in a previously unknown kind of hydrothermal vent ecosystem on the seafloor, it does not substantiate his claim that the findings hint that life may have originated in an environment like the Lost City hydrothermal vent.

«This is the first time this egg - incubating behaviour, using heat from active hydrothermal vents, has been recorded in the marine environment,» says Pelayo Salinas de León of the Charles Darwin Foundation in the Galapagos, Ecuador.

Earthly life has proved remarkably hardy in similar extreme environments such as hydrothermal vents on the ocean floor and polar ice.

Modern - day provannid snails inhabit ephemeral and remote deep - sea environments — cold methane seeps; hydrothermal vents that spew superheated, chemical - rich water; and whale carcasses — and their prehistoric forebears probably did the same.

According to Reuters and the New York Times, scientists working on the space agency's Cassini mission have discovered that ice plumes on Enceladus contained molecular hydrogen (H2) from hydrothermal vents — the same environment that some researchers believe helped lead to the rise of life here on Earth.

More recently, however, microbial life found around hydrothermal vent ecosystems (i.e., the «Lost City» found in the Mid-Atlantic Ridge, which is cooler than those found at «black smokers») indicate that Carbon - 13 is not selected against Carbon - 12 in hydrogen - rich environments where microbial life is starved of carbon, essentially in the form of carbon dioxide (Alexander S. Bradley, Scientific American, December 2009: pp. 62 - 67).

There are also microbes that are known to live in incredibly harsh environments on Earth such as in deep - sea hydrothermal vents, acidic lakes and the hot springs of Yellowstone.

In their work examining intergranular attack of alloys under hydrothermal conditions, scientists from PNNL's ACMD Division Computational Mathematics group, Physical Sciences Division, and Energy and Environment Directorate developed a mathematical model that is directly comparable to experimental data in predicting how fast oxygen penetrates binary alloys and the resulting depletion of select elements in the materials that leads to failures.

«We report for the first time, a unique behavior where the deep - sea skate, Bathyraja spinosissima, appears to be actively using the elevated temperature of a hydrothermal vent environment to naturally «incubate» developing egg - cases,» the researchers wrote in the journal Scientific Reports on Feb. 8.

Microorganisms dominate all other life everywhere scientists have looked, including the human body, the Earth's soils and sediments, the oceans and fresh waterways, the atmosphere and even extreme environments such as hydrothermal vents and subglacial lakes.

Deep sea hydrothermal vent environments are also speculated to exist on Jupiter's moon, Europa.

Trained as an astrobiologist at Stanford and Caltech, Loretta has been to the Canadian Arctic to study plant life in extreme environments and to the hydrothermal vents at the bottom of the ocean with «Titanic» director James Cameron to film a 3D IMAX documentary, «Aliens of the Deep.»

«The global nature of Enceladus» ocean and the inference that hydrothermal systems might exist at the ocean's base strengthen the case that this small moon of Saturn may have environments similar to those at the bottom of our own ocean,» said Jonathan Lunine, an interdisciplinary scientist on the Cassini mission at Cornell University in Ithaca, N.Y. «It is therefore very tempting to imagine that life could exist in such a habitable realm, a billion miles from our home.»

Inhibitors degradation and microbial response during continuous anaerobic conversion of hydrothermal liquefaction wastewater — Buchun Sia — Science of The Total Environment

They argue that, in order to understand how life formed on Earth, we should ignore the surface environments on Mars and focus exploration on hydrothermal deposits.

Models shall be developed to assist both in the development of geothermal reservoirs and to more accurately account for stress - related effects in stimulated hydrothermal and enhanced geothermal systems production environments.

Scientists at Columbia's Lamont - Doherty Earth Observatory have found evidence of hydrothermal vents on the seafloor near Antarctica, formerly a blank spot on the map for researchers wanting to learn more about seafloor formation and the bizarre life forms drawn to these extreme environments.

In a recent expedition near Antartica, researchers from Oxford discovered dozens of remarkable new species thriving in one of the most extreme environments on the planet, alongside deep - sea hydrothermal vents where temperatures can reach over 750F.