
TechnologyFebruary 1, 1952
Flight at the Borders of Space
As aircraft and missiles attain higher and higher altitudes the question arises: Where, for practical purposes, does the atmosphere of the Earth end and interplanetary space begin?

Flight at the Borders of Space
As aircraft and missiles attain higher and higher altitudes the question arises: Where, for practical purposes, does the atmosphere of the Earth end and interplanetary space begin?

The Human Body in Space
Scientists and engineers have long considered the problems of flight to other planets. As the reality of space travel slowly draws closer, they particularly weigh its effects on man's earth-conditioned frame