The search for alien life may have reached a turning point. Scientists have detected mysterious molecules on a distant ocean world that could signal biological activity. Dive into the data, the debate ...

Data from the James Webb Space Telescope on exoplanet K2-18b has revealed the "strongest hints yet of biological activity outside the solar system," according to a University of Cambridge study.

Curious Kids is a series for children of all ages. If you have a question you’d like an expert to answer, send it to ...