Astronaut captures a difficult photo — the pyramids from space

A NASA astronaut is due to fly back to Earth from the International Space Station Thursday, but he had to accomplish one last space tourist task before heading home: Terry Virts wanted to take a nice picture of the pyramids in Egypt from space. The pyramids, and other man-made formations like the Great Wall of China, tend to blend in to the land surrounding them from space. It's actually really difficult, if not impossible, to see the Great Wall from space with the unaided eye, according to NASA...