What you're looking at is the first image of Earth photographed from the surface of a planet beyond the Moon. This photograph was taken by the Mars Exploration Rover Spirit one hour before sunrise on the 63rd Martian day on March 8, 2004. It's a "mosaic of images taken by the rover's navigation camera showing a broad view of the sky, and an image taken by the rover's panoramic camera of Earth," according to Twisted Sifter. Click here to view the first image in this week's geek life gallery. Continue reading for a viral video of a dog taking on a robotic spider.