Why tourists are being told to wipe their shoes before visiting the ‘world’s clearest lake’
Hikers in New Zealand risk polluting the “clearest lake in the world” with a microscopic alga carried on their boots.
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The observatories' images were also used to determine which galaxy piled through the center of LEDA 1313424, creating he galaxy's distinct rings — the blue dwarf galaxy just to the left is the ...