The second part of the video is rocket exhaust in the upper atmosphere. I have seen in about a dozen times. The sun itself is over the horizon but it
still hits and reflects off the exhaust in the upper atmosphere. If you watch the following shuttle launch, it demonstrates this effect quite well.
notice how the exhaust seems to glow brightly when the shuttle reaches sunlight.
The only difference is that in the OP's video, the exhaust has had about 10-20 minutes to scatter a bit.
This content community relies on user-generated content from our member contributors. The opinions of our members are not those of site ownership who maintains strict editorial agnosticism and simply provides a collaborative venue for free expression.