Following its historic visit to Pluto, New Horizons has spent the past four years heading to a distant place only discovered in 2014: Ultima Thule. On New Year’s Day, it flew past that object and took ...

The New Horizons spacecraft got famous for its Pluto flyby in 2015, but here in 2019, it’s been making discoveries that are just as fascinating. On New Year’s Day, New Horizons flew past a distant ...

Ultima Thule is one of the solar system’s most hermitlike homebodies. In the 4.6 billion years since the small icy world formed, astronomers think that it has never moved from its original orbit about ...

Ultima Thule is the most distant object to be explored by a spacecraft Scientists are getting closer to understanding how the distant object known as Ultima Thule came to be. Nasa's New Horizons ...