explainer videos | nature

The eye disease called age-related macular degeneration is expected to affect 18 million people worldwide by 2040. The dry form is currently untreatable but a slew of promising therapies could offer ways to lessen the damage.

With the world in the grip of the COVID-19 pandemic, all eyes were on vaccine trials and the researchers developing them. This film walks through vaccine development step by step and explores how the process could be accelerated.

To turn troublesome carbon dioxide into useful chemicals, scientists have been taking a leaf out of plants' book. They have now developed a complete artificial photosynthesis system that could work at scale and help fight climate change.

Around 8 million people a year in the United States are reported to have fractured a bone. When fractures do not heal properly, regenerative medicine may provide a path to recovery and improved quality of life.