Just this past fourth of July weekend there was an incident involving a Northwest Airlines B757 that suffer huge amount damage on the nose dome of the fuselage. The aircraft was inbound to Florida & flying at around 15,000 ft when the passengers heard a loud bang. There was also a lot of lightning in the area at that time. However, it remains a mystery on the exact cause of the damage. The bottom line is that aircraft are made tough to take a lot of damage like that rather its a bird strike from a large bird, or lightning. But, in any case this is prove to trust the industry & the technology that will keep you safe.