An extended upper atmosphere around the extrasolar planet HD209458b

Article Abstract:

The gas giant planet in the system HD209458 can be observed in transit across the disk of its sun, allowing for the detection of atomic hydrogen in its atmosphere, but at a point beyond the Roche limit, indicating that hydrogen is escaping from the planet, according to researchers in France, the US and Switzerland.

United States, Switzerland, Astrophysics

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Perennial water ice identified in the south polar cap of Mars

Article Abstract:

The important clues for understanding the geological climate and potentially exobiological evolution of the planet is the inventory of water and carbon dioxide reservoirs on Mars. The first direct identification and mapping of both carbon dioxide and water ice in the Martian high southern latitudes is presented.

Industrial Gas Manufacturing, Industrial gases, Carbon Dioxide, Mars (Planet), Discovery and exploration, Water

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Origins of atmospheric zonal winds

Article Abstract:

French researchers have replicated the stong zonal jets in the atmospheres of Jupiter and Saturn, using a two-dimensional deep-turbulence model applied to a rapidly rotating planet.

Atmosphere

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