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Ancient life in Greenland and the search for life on Mars

It’s only fair to share…Ancient life in Greenland and the search for life on Mars David Flannery, NASA Australian geologists say they have found ancient microbial fossils in 3.7 billion-year-old rocks in Greenland. The finding, reported in Nature last month, is some 200 million years older than previously accepted fossils. Previously, the best-known evidence for… Read more »

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What’s it like to see auroras on other planets?

It’s only fair to share…What’s it like to see auroras on other planets? Nathan Case, Lancaster University Witnessing an aurora first-hand is a truly awe-inspiring experience. The natural beauty of the northern or southern lights captures the public imagination unlike any other aspect of space weather. But auroras aren’t unique to Earth and can be… Read more »

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NASA: streaks of salt on Mars mean flowing water, and raise new hopes of finding life

It’s only fair to share…NASA: streaks of salt on Mars mean flowing water, and raise new hopes of finding life David Rothery, The Open University Salty streaks have been discovered on Mars, which could be a sign that salt water seeps to the surface in the summers. Scientists have previously observed dark streaks (see image… Read more »