A lamp illuminates Syriac writing on a parchment from the 9th or 10th century A.D., beneath which hides erased text about the ancient sky.
Jacqueline Ramseyer Orrell/SLAC National Accelerator Laboratory
A lamp illuminates Syriac writing on a parchment from the 9th or 10th century A.D., beneath which hides erased text about the ancient sky.
Jacqueline Ramseyer Orrell/SLAC National Accelerator Laboratory