Years ago, in the process of coming up with a possible story idea for a sci-fi animation project, I told an animator, what if one day we discover there’s a planet similar to Earth located exactly opposite us behind the Sun? Recently, I read about this new film, “Another Earth”, and its plot involves, indeed, another Earth-like planet just discovered.

So what if a planet just appears in our skies one morning? How would you explain that in your own terms and what would be your immediate thoughts? Concerns?