What is Quaoar made of?
We don’t know exactly. We suspect that most Kuiper Belt Objects are made of equal portions of rock and ices. There are many chemicals which are normally liquids or gas on Earth that would be different types of ice on Quaoar, including water, methane ice (natural gas ice), methanol ice (alcohol ice), carbon dioxide ice (dry ice), carbon monoxide ice (very gross) and others. We know that there is water ice on Quaoar from measurements made at the Keck Telescope.
