An international team of astronomers has discovered a distant planetary system that challenges long-standing theories of how ...

Out in the Kuiper Belt, the massive doughnut of debris beyond Neptune, about one in 10 kilometer-scale objects have surprised scientists with their unexpected shape. Rather than resembling a ball, ...

Astronomers have puzzled for years over a strange pattern in the outer solar system. A surprising number of icy bodies far beyond Neptune resemble snowmen, made of two rounded lobes stuck together.

Astronomers have analyzed the data from long-term radio observations of a binary pulsar known as PSR J1906+0746. Results of ...