Google+

New Horizons Probe to Pass Mysterious Ultima Thule on New Years Day

An artist's impression of Ultima Thule, which is already turning out to be quite mysterious before...
An artist’s impression of Ultima Thule, which is already turning out to be quite mysterious before New Horizons even arrives(Credit: NASA/JHUAPL/SwRI/Steve Gribben)

NASA’s New Horizons probe is just days away from its historic flyby of Ultima Thule, a mysterious object on the fringe of the solar system. Since it awoke from hibernation back in June, the craft has been making observations of the object, and that has raised the first puzzle – Ultima seems to be an unexpectedly “dark” world, and while there are a number of possible explanations, none of them have any precedent in the solar system. read more