Science

A new fight over cochlear ear implants
Insurance companies who cover one cochlear implant are balking at covering a second, in spite of evidence that two work better than one.
Comic novelist combines design with infamous experiments
Graphic designer Chip Kidd is one of the most sought-after book cover designers in the country. He's also a novelist, and his latest book, "The Learners," deals with the infamous Milgram experiments.
Exhibit on Nazi eugenics opens at Science Museum
An exhibit at the Science Museum of Minnesota looks at how the Nazis used science to help legitimize the Holocaust. "Deadly Medicine: Creating the Master Race" explores the Nazi eugenics movement of the 1930s and 1940s.
Take that, rogue satellite
The United States shoots down a defunct spy satellite.
News Cut: The eclipse
Across the state, Minnesotans took advantage of their chance to see the moon turn red during the year's only total lunar eclipse early on Wednesday night.
What lies beneath?  Engineers draw down Mississippi in Minneapolis
Engineers have drained off the top 13 feet of the Mississippi River between the Upper and Lower St. Anthony Falls dams in Minneapolis. Historians are savoring a view of the river that resembles what the first explorers probably found at the site.
Bridge investigation: Six months of digging but few answers
The NTSB has examined the collapsed 35W bridge for six months. The answers to what caused the collapse are still another six months away.
New techniques can make physical therapy a game
New technology is helping people who are paralyzed a chance to use of their arms and legs again. Studies show the device called Bioness, works with stroke patients. A Sioux Falls rehabilitation center is testing how it works with patients suffering from a spinal cord injury.
Building mental muscles
We all know the physical benefits of exercise, but new research is showing that that physical activity can also be good for our brains. The author of a new book says exercise is the most powerful tool we have to optimize brain function.