Feature

Physics

Centuries on, Newton’s gravitational constant still can’t be pinned down

A new experiment could finally answer the question 'What is the strength of gravity?' But it's a hard test to do.

Neuroscience

Elyse G.’s brain is fabulous. It’s also missing a big chunk

A new project explores interesting brains to better understand neural flexibility.

Earth

How Kenya is helping its neighbors develop geothermal energy

Renewable energy is crucial to halting climate change. In East Africa, the region’s geology makes geothermal energy a viable option.

Humans

Lauren Schroeder looks beyond natural selection to rethink human evolution

Paleoanthropologists studying the fossil record have long focused on natural selection, but other processes play a big role too.