this is an explosive charge of gases and ash thrown up into the sky. and when it's thrown up into the sky, at literally hundreds of miles per hour, it's like 1 million little people rubbing their feet on the carpet making shocks and making sparks, you know, in the wintertime when the humidity is low. you rub your feet, touch the doorknob, you get a shock. this is now rubbing all of these ash particles together, creating static, and the static electricity is one gigantic lightning show. >> amazing pictures. chad, appreciate it. thanks. air travel is still a mess tonight, not nearly as big a mess as yesterday, although the backlog remains huge. a lot of flights resumed today. even britain reopened its air space. i want to show you what the air space over europe and the atlantic ocean looks like tonight. half of europe's flights were back in the air today, about 14,000 flights. fewer than 9,000 were flying just last night. richard quest is still here in the was, monitoring the situation, unable to get home, i guess until some time this weekend? >> yeah. time to get married and divorced before i get back to the uk,