Pebbles and sand scattered near an ancient Martian river network may present the most convincing evidence yet that the frigid deserts of the Red Planet were once a habitable environment traversed by ...

The tourists were stopped by police as they were about to board a ferry in Porto Torres, Sardinia, heading to Toulon in France. Officers found 40kg (88lb) of Sardinian sand taken from Chia beach in 14 ...

Peb­bles and sand scat­tered near an ancient Mar­t­ian river net­work may present the most con­vinc­ing evi­dence yet that the frigid deserts of the Red Planet were once a hab­it­able envi­ron­ment ...