“As Earth prepares for a double flyby of asteroids in the next day, astronomers have created this unique view of the  earth – from an asteroid as it passes close by. This animation shows the Sun and the Earth as  observed from the asteroid 2012 XE54, which alongside a long-studied giant space  rock named Toutatis will pass close to Earth later today.  Luckily, there is no danger of either hitting  Earth – but scientists say  the unique occurrence could help them learn a lot about asteroids.”

http://www.dailymail.co.uk/sciencetech/article-2246500/3-mile-wide-asteroid-XE54-passes-just-226-000km–crosses-Earths-shadow.html