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Latest Department of Earth Science and Engineering Stories

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2011-04-04 11:34:29

Bombardments of 'micro-meteorites' on Earth and Mars four billion years ago may have caused the planets' climates to cool dramatically, hampering their ability to support life, according to research published today in the journal Geochimica et Cosmochimica Acta. Scientists from Imperial College London studied the effects of the Late Heavy Bombardment (LHB), a period of time in the early Solar System when meteorite showers lasting around 100 million years barraged Earth and Mars. This...

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2009-12-08 14:00:00

Scientists rule out the possibility that methane is delivered by meteorites into the Martian atmosphere Scientists have ruled out the possibility that methane is delivered to Mars by meteorites, raising fresh hopes that the gas might be generated by life on the red planet, in research published tomorrow (Wednesday December 9, 2009) in Earth and Planetary Science Letters. Methane has a short lifetime of just a few hundred years on Mars because it is constantly being depleted by a chemical...