According to University of Toledo graduate, Dr. Robert Dempsey, NASA flight director and lead author of the 400-page book, while the science is amazing, and space itself is dazzling, this is a book about teamwork—specifically, the behind-the-scenes, often invisible effort of the mission control team behind the ISS (International Space Station).
"Sisters. Sisters! There were never such devoted sisters.... when a special gentleman arrived from Rome, she wore the dress and I stayed home!" In honor of National Siblings Day, we've put together 5fun photos for you to laugh about. With or without your sister.