Water on Mars? Scientists discover 'bathtub ring' which may reveal contours of ancient ocean

Like Earth and the solar system's other planets, Mars formed roughly 4.5 billion years ago. Early in its history, Mars was ...
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Giant 'spiderwebs' on Mars contain tiny egg-like structures that scientists 'can't quite explain,' new photos reveal

Add Yahoo as a preferred source to see more of our stories on Google. When you buy through links on our articles, Future and its syndication partners may earn a commission. NASA has released two new ...
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Mysterious never-before-seen egg-like structures found on Mars

Nasa’s Curiosity rover has been investigating the spider-web-like rock formations found on Mars – and found mysterious egg-like structures. Newly issued images show giant zig-zagging ridges, known as ...
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Mysterious Structure on Mars Looks Uncannily Like an Ancient Egyptian Pyramid

Add Yahoo as a preferred source to see more of our stories on Google. The so-called Candor Tetrahedron. (NASA/JPL-Caltech/UArizona) It would be tempting to assume there's nothing much of note ...