The countdown clock is a classic application of the loss aversion principle - it gives users a tangible way to see exactly how much time they have to get the offer. This countdown clock is tied to a live stream of a NASA shuttle launch, which they've paired with the "Watch Live" call to action. The live stream is only available for a limited time, and if you miss it, you'll not be able to experience that once-in-a-lifetime moment again.
