Vanguard Satellite

One of the Vanguard satellites checked out at Cape Canaveral, Florida in 1958. The Navy-led program had a series of high-profile launch mishaps, but ultimately put up Vanguard 1, in March 1958. It was the second U.S. satellite in orbit, following Explorer 1 by a month.

Image Credit: NASA

Page Last Updated: March 17th, 2015
Page Editor: NASA Administrator