According to an ancient Chinese proverb, “A journey of a thousand miles must begin with a single step.” NASA is preparing to return astronauts to the Moon followed by exploration of Mars, a planet that is 121 million miles from Earth. Those journeys began 60 years ago with a single, 116-mile “step” into space by Alan Shepard on May 5, 1961.
The dream of breaking the “chains of gravity” and traveling through space was realized six decades ago on April 12, 1961. At age 27, Soviet cosmonaut Yuri Gagarin launched into a one-orbit mission around the Earth becoming the first person to venture into the cosmos. While it was another volley in the Cold War with the United States, it marked a historic achievement hailed around the world.
Spaceflight is inherently dangerous. From the earliest days of designing spacecraft for crews, engineers have looked for ways astronauts could be rescued in the event of a mishap involving the rocket. An American-developed option — a launch escape system, or escape tower – was copied by the Soviet Union and it saved the lives of two Russian cosmonauts.