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The oldest olive tree in the world is in Greece
It’s only one of seven olive trees in the Mediterranean, which are believed to be over 2,000 years old
This Mars Simulation is being ruined by tourists & drones
The Mars simulation research base in Utah has become a tourist niche hot-spot. Months and even years of research are being ruined by trespassers
Persephone, the robot guide, leads visitors in a Greek cave
The robot was built by the National Technology and Research Foundation and cost 118,000 euros ($139,000)