Fragments of a star catalog from the second century B.C. have turned up in a manuscript that had been erased and written over centuries later. A new analysis of the religious manuscript shows that the ...

The discovery has also revealed star coordinates, meaning Hipparchus was the first to use them for determining the positions of those stars. When you purchase through links on our site, we may earn an ...

Jo Marchant is a freelance science writer based in London. A medieval parchment from a monastery in Egypt has yielded a surprising treasure. Hidden beneath Christian texts, scholars have discovered ...