Apollo 15 Countdown Demonstration TestThe Apollo 15 Saturn V is seen from a camera located at the mobile launcher's 360-foot level at Launch Pad 39A during the countdown demonstration test.Image Credit: NASARead More Facebook Pinterest X LinkedIn Email https://www.nasa.gov/image-detail/apollo-15-countdown-demonstration-test-2/Copy URL to clipboard> DownloadShareImage CreditNASASize1041x1460px