Mask up, chill out by Matthew Modoono September 2, 2020 Share Mastodon Facebook LinkedIn Twitter Erin Williams, a student of biology, masks up to bask in the summer breeze on Centennial Common. Photo by Matthew Modoono/Northeastern University Erin Williams, a student of biology, masks up to bask in the summer breeze on Centennial Common. Photo by Matthew Modoono/Northeastern University