The outer solar system is difficult to inventory because its small, distant objects reflect very little light. NASA reports that the James Webb Space Telescope detected 27 faint bodies beyond Neptune, ...

NASA’s James Webb Space Telescope has helped reveal 27 tiny trans-Neptunian objects, or TNOs, in one of the solar system’s most distant regions. Researchers combined Webb observations with NASA’s ...

Some scientists are convinced that beyond Neptune, there's a planet they've yet to see. This so-called "Planet 9" is so far away, it would be a faint object. The stretch of sky researchers would have ...