Inspired / borrowed from the always groovy Astronomy Picture of the Day blog. I did pause before simply copying this image over, but then I realized that my grandparents' tax dollars paid for this photo, so i guess it's ok to reuse it here. ;-)
From the blog:
What would it be like to explore the Moon? NASA's Apollo missions gave humans just this chance in the late 1960s and early 1970s. In particular, the Apollo 15 mission was dedicated to better understanding the surface of the Moon by exploring mountains, valleys, maria, and highlands. Astronauts David Scott and James Irwin spent nearly three days on the Moon while Alfred Worden orbited above in the Command Module. The mission, which blasted off from Earth on 1971 July 26, was the first to deploy a Lunar Roving Vehicle. Pictured above in this digitally stitched mosaic panorama, David Scott examines a boulder in front of the summit of Mt. Hadley Delta. The shadow of James Irwin is visible to the right, while scrolling to the right will reveal a well-lit and diverse lunar terrain. The Apollo 15 mission returned about 76 kilograms of moon rocks for detailed study. In the future, NASA and other space agencies plan to continue to lead humanity's exploration of the Moon, Mars, and beyond.
Welcome to Earth! It's a planet having an iron core, with two-thirds of its surface covered by water. Earth orbits a local star called the Sun, the light of which generates the food supply for all the millions of species of life on earth. The dominant species on Earth is the human being, and you're one of the six billion of them! Humans have iron in their blood, and their bodies are composed of two-thirds water, just like the planet they live on. The physical composition of the Earth, its people and everything on it contains an electro-magnetic field which is not yet fully understood. Theories and legends about the origin of Earth, people and life itself abound, however they are not commonly discussed. The bulk of earth's people spend their time immersed in daily activities, leaving the big questions for later. "Who are we? Where did we come from? Where are we going? How will we get there?" Many religions and philosophies have attempted to answer these questions over the years, but so far none has given an answer that everyone on the planet can accept. In contrast to all the disagreement, the similarities among people on earth are far, far greater than any differences. Welcome again to Earth! Enjoy your stay, and try to stay calm.