When you hear the word desert, what comes to mind? Chances are, you'd think of sun, sand, and very little in the way of rain. Perhaps cacti, vultures, mesas, and scorpions come to mind as well, or possibly camels and oases?
Like all of Earth's climates, it all comes down to some basic characteristics that they share - which in this case, involves being barren, dry, and hostile to life. For this reason, you might be surprised to learn that the largest desert in the world is actually in Antarctica.