A six-pound chunk of ice fell from the sky, through a York woman's roof and slightly injured her as she slept.

The source of the ice wasn't immediately known, but experts say it might have fallen from an airplane or rocket.

Mary Ann Foster says she's glad to be alive after a piece broke off and hit her on the forehead.

The ice left the 66-year-old grandmother with a large bump on her head and holes in the roof and bedroom ceiling.

She says the ice has a slightly fishy smell and looks like quartz.