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Nabta Playa: A mysterious stone circle that may be the world's oldest astronomical observatory
What it is: An ancient stone circle in the Egyptian desert that may be the oldest known astronomical observatory Where it is from: An desert area of southern Egypt, about 175 miles (280 kilometers ...
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The oldest solar observatory in the Americas was built by an unknown civilization before the Inca era
Long before the Incas came to power in Peru and began to celebrate their sun god, a little-known civilization was building the oldest known astronomical observatory in the Americas. While not as ...
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Are some of the oldest stars in the universe right under our noses?
An MIT astronomy class has found three of the oldest stars in the universe lurking right outside the Milky Way. The stars, about 30,000 light-years from Earth, are in the galaxy's "halo," the ...
Scientists Think Light May Hold the Memory of Ancient Cataclysms
According to Einstein’s theory of general relativity, gravitational waves warp spacetime. In the process, they could imprint ...