Fusion's next big challenge: Solving the tritium conundrum
At $30,000 per gram, tritium is one of the most expensive materials on Earth. It’s also in exceptionally short supply. Unless researchers find ways to make more, that could be a problem for the next generation of fusion reactors, Jasmin Fox-Skelly reports.
Vision for the future: The quest to manage macular degeneration
Macular degeneration remains the leading cause of sight loss in the UK. New research could make the condition easier to manage – and may hold a potential cure in the future. Lou Reade reports
AI's next big step: Learning tricks from the human brain
The past few years have been stellar for Artificial Intelligence, thanks to the introduction of generative systems such as ChatGPT. But for this trajectory to continue, AI systems will need to become less artificial and more brain-like. Jon Evans reports