Sentences with phrase «as deep sea vents»

Not exact matches

Of the 30 or so trace elements Geotraces scientists are studying, some — such as iron and copper — are naturally occurring nutrients supplied by dust storms and deep - sea vents.

She describes her project as studying hyperthermophilic archaea, the living occupants of deep - sea hydrothermal vents that survive in extreme heat, pressure, and chemical toxicity.

Deep - sea hydrothermal vents give rise to some of the most bizarre forms of life on the planet, such as blind albino crabs.

Bacteria and archaea — collectively known as prokaryotes — live pretty much everywhere, dividing happily in places from stomach acid to deep - sea vents.

A study described here today at the American Geophysical Union's biennial Ocean Sciences Meeting shows that RNA's chemical building blocks fall apart within days to years at temperatures near boiling — a finding that poses problems for some origin of life theories, especially ones picturing that life arose in scalding settings such as deep - sea hydrothermal vents.

The other, which has gained popularity in recent years, is that deep - sea vents at the bottom of the ocean acted as a cradle for life, offering both heat and nutrition via fluids pumped up through Earth's crust.

Many distant worlds have never received as much light as Earth, but it is suspected that some of them have hydrothermal systems similar to Earth's deep - sea vents.

Deep - sea vents, first directly observed only 20 years ago, have become of increasing interest as a possible origin of the planet's life.

One of the most prevalent theories as to how life evolved on Earth is through chemical reactions at deep sea hydrothermal vents.

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.

However, Wolfenden notes that even today there are microorganisms living in hot springs and deep - sea thermal vents that thrive at temperatures as high as 120 degrees Celsius.

Exploration of deep - sea hydrothermal vents in other sectors of the Southern Ocean, such as the Pacific - Antarctic Ridge [16], are likely to reveal further chemosynthetic communities.