In the race to expand mankind's presence in space, the non-profit Mars One mission hopes to be the first in putting human boots on Martian ground by 2025. This year the Netherlands-based group will choose 24 finalists for the one-way, $6-billion mission to start a Martian colony, with plans to capture the experience in a reality TV show. What do humans stand to gain from colonising Mars?

Sacred land, secret legislation, and billions of dollars. These are a few issues surrounding a controversy that has Arizona's Apache tribe taking on copper mining giants. As part of an exchange approved by US Congress, 2,000 acres of federal land will be given to the Rio Tinto mining firm, who says the project will bring economic prosperity. Apache claim the site is holy and must be protected.