The neighborhood beyond Neptune is becoming ever more crowded, with astronomers announcing this week the discovery of another likely dwarf planet.

A survey at the Canada-France-Hawaii Telescope in Hawaii has been tracking more than 600 bodies in a ring of icy debris known as the Kuiper belt. One of them turned out to be the likely dwarf planet.

“This is a big fish among a whole lot of small ones we’re working with,” said Michele Bannister, a postdoctoral fellow at the University of Victoria in British Columbia who is working on the survey.

In the year since NASA’s New Horizons spacecraft flew past Pluto, planetary astronomers continue to make new discoveries in the Kuiper belt and what it might reveal about the earliest days of the solar system. The study of these objects also offers hints about the formation and migration of the gas giant planets: Jupiter, Saturn, Uranus and Neptune.