What Are Nanoparticles and Why Should You Care About Them? The technology of tiny particles is revolutionizing skincare—but it might not be safe. By Annie Jackson
Reprintable Paper Becomes a Reality Coating paper with an inexpensive thin film can allow users to print and erase a physical page as many as 80 times. That reduces both the cost and the environmental effects of paper use. By Yadong Yin
How Chess.com Co-Founder Danny Rensch Turned a Centuries-Old Game Into a Media Empire By Tom Samiljan
Ho Jae Kim’s Civil Art Returns to Christie’s With a Million-Dollar Milestone in Sight By Elisa Carollo