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Infectious Evolution: Ancient virus hit apes, not our ancestors, in the genes
A potentially deadly infection wormed its way into the DNA of ancestral chimpanzees and gorillas between 4 million and 3 million years ago, thus altering the evolution of these African apes while keeping clear of human ancestors on that same continent.
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The many reports of the explorations of Mars looking for water seem to be motivated by mere curiosity. Even if water is found on Mars, the lack of a Martian magnetic field would expose any life on Mars to the ravages of radiation from space. The high-velocity sandstorms would also be adverse to any life […]
- Planetary Science
Martian Landscaping: Spacecraft eyes evidence of a frozen sea
After analyzing images taken by the orbiting Mars Express spacecraft, researchers reported that a flat region near the Red Planet's equator holds a frozen ocean that was once the size of the North Sea.
