Story at-a-glance 1  -. The use of gadolinium-based contrast agents for enhanced MRIs has been linked to hypersensitivity in certain brain regions, with unknown consequences. 2  The use of gadolinium-based contrast agents is linked to the development of Nephrogenic Systemic Fibrosis (NSF) in patients with severe kidney disease.
Space Needle. The Space Needle is a tower in Seattle, Washington. It is at the Seattle Center. The Space Needle was built for the 1962 World's Fair. During this time, almost 20,000 people used the elevators every day. Over 2.3 million visitors came to the World Fair overall.
Atlantis lands at the Kennedy Space Center, bringing the Space Shuttle program to an end. Pictured in the STS-135 crew portrait are NASA astronauts Chris Ferguson (center right), commander; Doug Hurley (center left), pilot; Rex Walheim and Sandy Magnus, both mission specialists.