For decades, Pluto was our solar system's ninth planet. This video explains the scientific journey that led to its ...

Additionally, we compare mountain blocks in chaotic terrain and fretted terrain on Mars. We find a positive linear relationship between the size and height of chaos blocks on Pluto and Mars, whereas ...

Pluto has been revealed to be more dynamic than previously thought. New images, taken with Hubble's revived Advanced Camera for Survey's High Resolution Camera, reveal changing surface features where ...

A high-resolution image of Pluto taken by New Horizons on July 14, 2015. The image has been color-enhanced to show the different geological features of the surface. NASA / Johns Hopkins University ...

Try for a moment to wrap your mind around the concept of “deep time.” That is, a time long ago when the dinosaurs lived, or when our planet came to be, about 4.5 billion years ago. So much has ...