NASA Image Reveals Lava 'River of Fire' on Snowy Mountain
A red-hot lava flow two miles long has been attracting crowds to the slopes of Mount Etna on the island of Sicily, Italy.
Tourists flock to erupting volcano in Italy, blocking rescue workers
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‘Careless’ tourists swamp Mount Etna following eruption blocking rescue routes
Thousands of tourists have travelled to Mount Etna to see the Sicilian volcano erupt, with local authorities warning that ...
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Mapmaking in the mind: How the brain builds mental maps of the world
Researchers have systematically detailed, step by step, how cognitive maps form in the brain's hippocampus -- a region responsible for learning and memory.