Step 1 : Introduction to the question "Where in our solar system did NASA find Mordor?"
...The U.S. space agency NASA revealed images of Pluto's largest moon Charon in 2015. One image showed a vast dark spot at the moon's north pole. The dark area was immediately named "Mordor," a name inspired by the "Lord of the Rings" works by J.R.R. Tolkien. The New Horizons spacecraft sent by NASA to study the distant dwarf planet and its moons took the stunning images. The photo of "Mordor" shows clear details of the cliffs and troughs that stretch about 1,000 kilometers across the moon's north polar region. Source: RT.com