Curiosity rover finds tantalizing hints that Mars could once have been habitable
Curiosity has previously discovered small organic molecules on Mars, but these recently found compounds are larger and would have require chemistry to reach a more advanced state to be produced. The finding is also good news for potential life hunters, as it shows that the indicators of life could still be around even after billions of years.
Scientists have found unusual, blueberry-like rocks on Mars that could give us more insights into its geological history.
NASA Technicians do final checks on NASA's Spirit rover in this image from March 28, 2003. The rover - and its twin, ...
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