Sounding rockets provided the first means to carry instruments to the outermost reaches of the Earth's atmosphere. They were, indeeed, our first space vehicles.

To explore the upper atmosphere man first used kites, then balloons, then aircraft. For many years balloons were the most effective means of obtaining direct me

Sounding rockets provided the first means to carry instruments to the outermost reaches of the Earth's atmosphere. They were, indeeed, our first space vehicles.