Tag: photographic plates
-
Nation & World
Guardians of the sky
After a flood threatened to destroy the Harvard College Observatory’s trove of glass plate negatives, staff members and students from around the University showed up to help move the plates to safety.
-
Nation & World
Building a stellar time machine
Harvard researchers are building a celestial time machine that lets astronomers look back at hundreds of thousands of objects in the Earth’s skies over the past century.