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2,300-year-old Chinese star chart is world’s oldest celestial map, reveals new studyUtilizing advanced imaging techniques, researchers at the Chinese National Astronomical Observatories determined that the ...
A neutron star is the densest object astronomers can observe directly, crushing half a million times Earth's mass into a sphere about 12 miles across, or similar in size to Manhattan Island ...
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World's oldest star chart may be 2,300 years old and from China — but not everyone agreesThe oldest star chart in the world was made in China more than 2,300 years ago, a hotly debated preprint study finds.
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