Public domain

KSC-07pd2784

NASA / KSC · 2007-10-10 · photograph (digital archive)

From the collection of NASA Image and Video Library. Free to download, adapt and use — no permission needed.

About this work

Kennedy Space Center, Fla. — In the white room on Launch Pad 39A, STS-120 Pilot George Zamka (left) and Mission Specialist Scott Parazynski are ready to enter space shuttle Discovery for a simulated launch countdown. The countdown is the culmination of the prelaunch terminal countdown demonstration test, or TCDT.

NASA Image and Video Library’s own description

Subjects

TCDT

Credit lineKSC-07pd2784. NASA/KSC, 2007-10-10. Public domain. ID: KSC-07pd2784.

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