Close up of Pluto’s Al-Idrisi Montes—an example of chaotic polygon-shaped terrain as captured by NASA’s New Horizons spacecraft on July 14, 2015. Credits: NASA/JHUAPL/SwRI
Today’s blog is from Katie Knight, an undergraduate student at Carson-Newman University in Jefferson City, Tennessee. She works with the New Horizons team to help map some of the unusual terrain on Pluto, seeking patterns and estimating sizes and shapes of some of its unusual features.
Hello! My name is Katie Knight, and I’m here to talk about Pluto’s unusual geological features known as polygonal blocks. If you look to the upper left of Pluto’s “heart,” informally-named Sputnik Planum, you will see some chaotic terrain that is very different than the almost smooth terrain of the icy plains. These are the Al-Idrisi Montes, and they are filled with blocks measuring miles to tens of miles across.
Sputnik Planum is the bright, western half of the heart shaped region near the middle of this enhanced view of Pluto. The Al-Idrisi mountains are adjacent to Sputnik’s northwestern edge. Credits: NASA/JHUAPL/SwRI
The blocks within even a very small region can be very different. Some are really distinct and appear to be taller – without any other blocks touching them ...