Science

The University of Minnesota's underground science lab at the old Soudan Mine site is being overtaken by other labs deeper underground.
Will California gas leak mark a turning point in energy debate?
A massive methane leak may soon end, but its environmental impact is still being weighed. A scientist says it won't have a big effect globally, but it's a setback in efforts to curb greenhouse gases.
Sperm bank for bees generates a buzz in Fargo
With honeybees under stress from pests and pesticides, federal authorities hope to build a center to store bee sperm and embryos. But it's a trickier business for bees than humans.
Shifting colors of an octopus may hint at a rich, nasty social life
When the gloomy octopus of Australia turns dark and towers threateningly over his neighbor, he's likely signaling aggression, scientists now say. Neighbors get the message -- they turn pale and flee.