Venus revealed

Article Abstract:

The Magellan spacecraft's first year of mapping the planet Venus has resulted in an important but sometimes unclear array of landscapes. The mapping has revealed impact craters distorted by the atmosphere, volcanoes, fractures, and a 6,800 kilometer-long lava channel.

Observations, United States. National Aeronautics and Space Administration, Magellan (Space probe), Venus probes

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Global climate change on Venus

Article Abstract:

The Magellan aircraft's mapping of the surface of the planet Venus from 1990 to 1994, together with detailed computer simulations, allowed scientists to reconstruct its climate history. Intense volcanism caused dramatic climatic changes in Venus.

Environmental aspects, Natural history, Climatic changes, Climate change, Volcanism

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Global climatic change on Mars

Article Abstract:

Life may have existed in Mars million of years ago when the planet was not yet in its frozen state. Such hypotheses are backed up by recent researches. Several such hypotheses are presented.

Mars (Planet)

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