STS Timer A Space Shuttle missions timer
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STS Timer Tags

Timer Firefox extension Countdown Space Shuttle US shuttle Shuttle shuttle screensaver Shuttle Timer Shuttle Countdown space shuttle simulation simulate space shuttle space shuttle analysis missions

STS Timer Description

STS Timer is a Firefox extension that displays a timer in the status bar to monitor the countdown and the duration of Space Shuttle missions. You will have the possibility to configure its display mode according to your preferences.

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