It's a system that's been around since ancient times. "The idea of celestial coordinates does assume that the sky is a sphere that surrounds the Earth. This is the idea that traces back to the early belief that the Earth was the center of everything," Christopher Palma, a teaching professor and associate head for undergraduate programs in the Department of Astronomy and Physics at the Pennsylvania State University, says in an email. "Even though we now know that to not be true, it is still true that the sky appears to be a sphere surrounding us, so we can use spherical coordinates to identify any location on the sky." … [Read more...] about How Do We Find Things in the Blackness of Space?
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The Ninja Legend Spreads The biggest challenge in separating ninja truth from myth is a lack of reliable primary sources. Turnbull says there are five total documents housed at the new research center that are similar to the monk's account. What's most remarkable about that handful of documents isn't so much the content of the original texts, but how they've been transformed into these legendary tales. The mission of the new center is to trace the path from a few garden-variety nighttime attacks in the 16th century to what became a global cultural phenomenon. … [Read more...] about Research Center Seeks to Separate Ninja Fact From Fiction