You might know that lead can be toxic, and that you can get lead poisoning from eating or inhaling old paint dust. Lead is called a heavy metal, and there are other sources of heavy metals that can be toxic, too. Silver, copper, mercury,...

NASA Web Site about the Apollo-Soyuz Test Project which included Donald "Deke" Slayton, one of the original seven American astronauts. The mission was the first joint Soviet-American space mission. Links are provided to descriptions and...

NASA's space science site for kids - en Espanol. Features a wide range of activities, including games, projects, animations, and more. Also contains useful information on basic physics, chemistry, and other natural sciences, offering...