This green roof and farm offer a Swiss army knife of solutions — flood control, solar energy, fresh produce, green space for city dwellers, jobs, learning opportunities, and more — to some of our most pressing urban problems. Landscape architect Kotchakorn Voraakhom tells us how it works.

Photographer Eman Mohammed captures the daily lives of incarcerated women and their children at one of the United States’ rare residential parenting programs.

Someday, solar panels may be light and cheap enough that they could be hung on a clothesline, thanks to a synthetic mineral called perovskite. Physicist Sam Stranks explains the solar-powered science and the challenges that stand in its way.

In an annual event called Meet to Sleep, women come together to doze in public spaces. These sleep-ins are all about rejecting a culture of fear and harassment and creating one of trust and shared safety, says artist and activist Jasmeen Patheja.

Ranging in age from 17 to 25, they are challenging their country’s gender norms by learning engineering and coding, and setting their sights on infinity and beyond.

Paul Rucker’s eye-opening work forces people to look at the bias and bigotry that have been sewn into the fabric of America.

Living on the Moon might just be a chance for humans to learn how to co-exist peacefully and sustainably, proposes Jorge Mañes Rubio, the European Space Agency’s first-ever resident artist. Explore his vision of a new way to settle outer space.