It looks like a lenticular cloud but the light within is pretty interesting. Do you happen to know what direction he was heading? And on what date
this happened? Was there any activity at the Kennedy Space Center that could account for this? I looked on the KSC website and they have a schedule
of upcoming launches Space Center Launch Schedule and a calendar which shows past
missions. The most recent was the Expedition 17 Soyuz Launch on 04/08/08.
Can you get more details?

