QUESTION: If valuable minerals are found on Mars, who would have the right to them? ANSWER from Steve Wall on February 3, 1997: This is a question that needs a lot of thought, and it doesn't have any obvious answer. Historically, the discoverer of new lands has "claimed" those lands, and whatever valuable minerals or other things they contained, for him/herself, or in the name of someone else (like a country or its king, for example). If history is any guide, this same thing may happen when valuable things are found on other planets. In the case of the moon, no claim has been made for ownership by any party as far as I know. You might also ask the Planetary Society, in Pasadena, California, for their answer to this intriguing question. Look in your library for examples of past explorers. In the end it will be the leaders of our countries who will determine how property rights will be decided in space. (The URL for the Planetary Society on the Internet is: http://www.transatlantech.com/tps/ )