For decades, the search for life beyond Earth has revolved around a key question: What molecules should scientists be looking ...

Comet C/2025 R3 PANSTARRS, which was only discovered last year, has been visible to stargazers in the northern hemisphere for ...

And when people are convinced that they know a secret, world-shaking truth, they are willing to wait a long time for ...

Astronomers using the James Webb Space Telescope have uncovered a trove of complex organic molecules frozen in ice around a young star in a neighboring galaxy — including the first-ever detection of ...

Thomas Mulligan examines the scientific challenge of defining and searching for non-Earth-like alien life forms that may not ...