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Showing posts from September 3, 2016

Alaska Has Been Mapped as Precisely as Mars

Alaska is one of the most poorly mapped places on Earth. In fact, topographic maps of Mars and the moon are typically more detailed than those of the Arctic state — until now. This week, the White House, National Science Foundation and National Geospatial Intelligence Agency (NGA) released the most accurate digital elevation maps of Alaska ever created.


from Science News Headlines - Yahoo News http://ift.tt/2c0QM4h
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Crocodile Carving Played Ritual Role in Ancient Mesoamerican City

A centuries-old stone crocodile carving used in Mesoamerican rituals was recently discovered in Mexico, offering clues about an ancient city's ceremonial practices, and its relationship with a larger city nearby. Archaeologists found the slab of carved rock in what is now Oaxaca, near a temple in the ruins of the city Lambityeco, which archaeologists first uncovered in the 1960s and dates back between 500 and A.D. 850. Their work yielded hints that Lambityeco may have begun distancing itself from its more powerful neighbor at one point, with scientists unearthing evidence of changes to important structures and their access routes.


from Science News Headlines - Yahoo News http://ift.tt/2cxveP9
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