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Equality is essential for sustainability. The science is clear — people in more-equal societies are more trusting and more likely to protect the environment than are those in unequal, consumer-driven ones.
We demonstrate an all-optical, mode-locking, Kerr-comb frequency division method that provides a chip-scale microwave source that is extremely versatile, accurate, stable and has ultralow noise, using only a single continuous-wave laser.
The story of deception in a rising star’s physics lab. Plus, how the anti-obesity drug semaglutide could help people with HIV and we meet the science advisers behind Oppenheimer.