Out of This World? The Mars Climate Change Mystery

By Erik Conway, writing for My Big Fat Planet Mars has been a grand scientific mystery ever since the first modern images were beamed back from the Mariner 4 spacecraft in 1965. Those snapshots showed a moon-like, cratered surface — not what we expected. Scientists had assumed that Mars would have an Earth-like atmosphere, composed […]...

Feb 15, 2011 / More »