Ancient life may be just one possible explanation for Mars rover's latest discovery

This is a selfie taken by NASA's Curiosity Mars rover at the "Rock Hall" drill site. (NASA/Caltech-JPL/MSSS) This is a selfie taken by NASA's Curiosity Mars rover at the "Rock Hall" drill site. (NASA/Caltech-JPL/MSSS)

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Trudeau cancelled B.C. appearance after RCMP warned protest could escalate: CP source

Prime Minister Justin Trudeau cancelled plans to appear in person at a Liberal fundraiser in British Columbia Tuesday after RCMP warned an aggressive protest outside the event could escalate if he arrived, said a source close to the decision. The source spoke to The Canadian Press on condition of anonymity because they were not authorized to discuss the situation publicly.

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