Largely Explicable:Pictures of sinkholes--formation often caused by underground water forming caves. When the water's gone, nothing's left to support the earth above it.
Can a zombie plague get us all? Joan Slonczewski tackles the topic.
Nigh Inexplicable:Egyptian statue moves
Scientists guess at why the early universe is not evenly distributed: Multiple universes
Opinion:The need for more English majors: Learn how to write
Philosopher Michael P. Lynch connects personhood and privacy (food for thought)