“About three billion years ago, Mars probably looked like a tranquil resort by the ocean. There’s some interesting fossils and craters on Mars that suggest a river ran through it. This means that, possibly, there was life on Mars. Maybe not as we know it, but life nonetheless.” “Do you believe in aliens?” I murmur, eyes still closed. “Believe in them?” he asks, surprised. “I don’t know any, so it’s hard to say I put my faith in them. Do I believe in their existence? Certainly. The question is, Are they close enough to be discovered, and more importantly—do we want to discover them?” “Yeah,” I
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