Saturday, May 29, 2010

ULA Finally Launches Delta IV

On their fourth attempt, United Launch Alliance finally launched their Delta IV with a Global Positioning System satellite aboard.

I filmed the launch from our driveway, which was at 11 PM EDT on May 27. A heavy cloud cover obscured the rocket moments after launch, so what you'll see is the clouds light up, then the rocket disappears within a few seconds. Shortly thereafter, though, you'll hear the roar of the engines, as sound travels slower than light. It was louder than usual because the clouds bounced the sound back down towards us. It's worth cranking up your computer speakers to listen.

Click here to watch the launch video. You need Windows Media Player and a broadband (cable modem, DSL) Internet connection to watch.

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