This Week in Science: Dyson Spheres, Hidden Amazon Structures, And More

JWST observed two stars flagged as possible Dyson sphere candidates, but their unusual signals appear to come from rare alignments rather than alien technology.

A new study suggests creatine may strengthen cancer-fighting immune responses by boosting the energy supply of dendritic cells.

A fossil from Australia preserves a rare three-step food chain, with a pterosaur eating a marine reptile and a larger predator taking the pterosaur.

Lidar has revealed hundreds of ancient structures in the Amazon, highlighting the scale of complex pre-Columbian societies.