Watch how the building blocks of Notre Dame—from wooden beams to the stone walls—were altered by the fire, and how researchers are using these fallen fragments to examine long-standing questions about the construction of the cathedral.
Click here for free access to our latest coronavirus/COVID-19 research, commentary, and news.
Support nonprofit science journalism
Science’s extensive COVID-19 coverage is free to all readers. To support our nonprofit science journalism, please make a tax-deductible gift today.