Some liked it hot

Article Abstract:

The hyperthermophiles, the common ancestors of the Archaea, Bacteria and Eucarya, survived at temperatures of 80-110 degrees celsius and were unable to grow at temperatures below 60 degrees celsius. Hyperthermophiles were incapable of photosynthesis, were protected by early heat-shock proteins, and incorporated environmental metals and sulphur into their proteins. During that period, organisms living at cooler temperatures may have been vaporized through meteor impact. The hyperthermophiles that tolerated higher temperatures survived and become the ancestors of modern life.

Reports, Bacteria, Thermophilic, Life, Origin, Origin of life, Thermophiles

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Is metal disposal toxic to deep oceans?

Article Abstract:

The proposed sinking of the Brent Spar oil storage platform in the North Atlantic by Shell Oil Company was called off due to opposition from the environmentalist group, Greenpeace. Disposing the metal rich tanks and ballasts of the platform in shallow waters could have harmed the biological community but since the ocean-floor is rich in metals the disposal in the deep seas, as planned, would have caused minimum damage. The alternative to this is disposing the platform on land which would be more difficult.

Environmental aspects, Environmental policy, Waste management, Waste disposal in the ocean, Ocean waste disposal, Shell Oil Co., Greenpeace Foundation

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Oceans inside Jupiter's moons

Article Abstract:

There is strong evidence that oceans exist not far below the surfaces of Europa and Callisto, Jupiter's Galilean moons. Evidence comes from observations of electromagnetic induction signatures by the Galileo magnetometer experiment, indicating that the satellite interiors are electrically conducting. The likely conductor is liquid water containing some electrolyte, and the conducting volume may extend almost to the surface of the satellites.

Research, Europa (Satellite), Satellites, Jovian satellites, Callisto (Satellite)

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