Pluto

Scratching the Surface: Tartarus Dorsa

1 hour ago

On this episode of Scratching the Surface, Caitlin Ahrens talks about some more interesting geographical features on the dwarf planet Pluto.    

Scratching the Surface: Cthulhu Macula

2 hours ago

For the 100th episode of Scratching the Surface, Caitlin Ahrens talks about everyone's favorite dwarf planet, Pluto and it's unique geography. 

Scratching the Surface: Pluto's Hazy Atmosphere

Jul 1, 2019

On this episode of Scratching the Surface, Caitlin talks about the strange properties of Pluto's atmosphere.

Scratching the Surface: Rogue Planets

Apr 10, 2018
NASA/JPL-Caltech

Welcome to Scratching the Surface with Caitlin Ahrens, the Pluto Manager at the University of Arkansas Center for Space and Planetary Science. 

What is a planet without a place to call home? Well, according to the International Astronomical Union- infamous for demoting Pluto- they are called sub-brown dwarfs officially. Don't let the name fool you, though, most of these "dwarfs" are about the size of Jupiter. 

Scratching the Surface: Charon's Deep, Dark Secret

Oct 27, 2017

Welcome to Scratching the Surface with Caitlin Ahrens, the Pluto Manager at the Center for Space and Planetary Science. Did you know that Pluto's companion moon Charon has a deep, dark canyon? This lunar crevasse, captured by images from the New Horizons spacecraft, is nearly five times deeper than the Grand Canyon.

For more on the Center for Space and Planetary Science, visit spacecenter.uark.edu