Video: These noctilucent clouds get an early start

Every summer, something strange and wonderful happens high above the north pole. Ice crystals begin to cling to the smoky remains of meteors, forming electric-blue clouds with tendrils that ripple hypnotically against the sunset sky.

Microsoft defends reports of exploited foreign workers

Microsoft makes billions. The kids who make its mouse? 52 cents an hour, according to a report published by the International Labor Committee.