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Geotimes
May 2007
Margaret Putney |
Peru's Ancient Solar Observatory A line of 2,300-year-old stone towers north of Lima, Peru, known as the Thirteen Towers of Chankillo form what a team of archaeologists is saying is the oldest solar observatory in the Americas.   |
Smithsonian
May 2007
Eric Jaffe |
Return of the Sun Cult In Peru, scientists discover the oldest solar observatory in the Americas |
Geotimes
October 2005
Megan Sever |
Ancient Peruvian Engineers New field studies at 600- to 2,000-year-old archaeological sites in northern Peru are revealing that ancient Andeans engineered structures to protect themselves from hazardous debris flows. |
Science News
March 1, 2008 |
Timeline: From the February 26, 1938, issue Dead men's heads carved on ancient temple in Peru... Animals of cooler regions larger than warm-land kin... Heart pain traced to overweight in many cases... |
Popular Mechanics
September 24, 2008
Andrew Moseman |
Weaker Solar Wind Won't Slow Global Warming, May Threaten Astronauts If a spacecraft keeps chugging along for long enough, eventually it may find something startling. |
