...sub-orbital space flight was accomplished on July 21, 1961, by Virgil l. Grissom. On February 2O, 1962, John H. Glenn, Jr., became the first American to orbit the earth — completing three circuits in five hours. M. Scott Carpenter flew three orbits on May 24, 1962,...

...Virgil I. Grissom was hoisted to safety in a rescue helicopter. In September the unmanned Mercury-Atlas combination was orbited successfully and landed where...heart with an enthusiasm that bewildered them and startled NASA. Their mail was enormous; hundreds of requests for personal appearances poured in. Glenn...

...health. The system was qualified for manned orbital flight. And on 20 February 1962, AstronautJohn H. Glenn, Jr., became the first American to orbit...heart with an enthusiasm that bewildered them and startled NASA. Their mail was enormous; hundreds of requests for personal appearances poured in. Glenn...

...man and spacecraft safely. On February 20, 1962, the objectives of Project Mercury were achieved when Astronaut John H. Glenn, Jr., became the first American to orbit the earth. Glenn completed three orbits of the earth and was in space for 4 hours, bb minutes, ana 2J seconcs....

...chimpanzee Enos on a two-orbit ride and landed him in good health. NASA officials cleared the system for manned orbital flight. And on 20 February 1962,...John H. Glenn Jr. became the first American to orbit Earth in space. Friendship /circled Earth three times; Glenn flew parts of the last two orbits manually...

...15-minute suborbital flight into space. In Friendship 7, Marine Corps Lieutenant Colonel (now Senator) John H. Glenn, Jr. became the first American to orbit the earth on February 20, 1962. On that date he completed a 3-orbit flight in 4 hours and 55 minutes. Man's flight...