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...study by a group from Brown University, Rhode Island, published in Nature, further challenges the idea that clay on Mars formed just like that on Earth. The team has done experiments suggesting that the origin of most of Mars’s clays was even earlier. They considered the likely conditions on the hot, infant Mars, 4.5 billion years ago. At that time, the primordial magma...

...studying for my first degree). I feel very lucky that I am now employed as a space scientist at a time when all this work is coming to fruition. Rosetta has now reached the bizarrely shaped rubber-duck comet and it has spent three months mapping its surface in the hope of finding a suitable spot to place its Philae lander. This is a huge feat in itself. It is the first...