The L.A. Times writes an in-depth guide as to the strategy and technological details of their recent virtual tour of Mars' Gale Crater.
They explain, "We built the tour of Gale Crater to discover how journalism could succeed in virtual reality. It presents new opportunities for telling stories and, possibly, a new platform for consuming and distributing news in the future. And besides, it’s kind of amazing to be able to fly around another planet on your phone. Even before we wrote any code, developing the project presented its own challenges. We started with the question: How do you tell a story where a user can move and interact in 3-D space?"