With a series of small beeps from a spiky globe 50 years ago lastmonth, the world shrank–and humanity’s view of Earth and the cosmosexpanded. Sputnik, the first artificial satellite, was launched by theSoviets and circled the globe Oct. 4, 1957. To commemorate the 50th anniversary of this important historical milestone, several educational organizations have offered free online resources for teaching about itsimpact. For example, history teachers can give students an in-depth look at the impact that Sputnik’s launch had on the United States and the Soviet Union, and how it helped to escalate the Cold War arms race,with “History and the Headlines: Sputnik Escalates the Cold War,” the latest featured topic in ABC-CLIO’s series of free online history resources. Developed in partnership with The History Channel and National History Day, the site includes primary sources, video clips,expert analysis, and engaging activities to help students explore the conflict that held the world in its grip for nearly 50 years. The free collection will be available online until Dec. 1.