Science

Minn. researchers find 'smoking gun' link between nicotine and cancer
Researchers at the University of Minnesota have detected two substances in tobacco smoke that directly cause lung cancer, and they say the finding may help one day predict which smokers will develop the disease.
Audit recommends ending ethanol subsidies in Minn.
Minnesota's Legislative Auditor said the state should consider ending its ethanol subsidy. But with the industry suffering a brutal downturn, key lawmakers say there's no way that idea will pass.
State approves massive power line project
A controversial power line project that will stretch across southern and central Minnesota has been approved by the Minnesota Public Utilities Commission.
Editing memory and consciousness
Researchers are learning more about how memories are made and lost by examining changes in the physiology of the brain. Midmorning finds out memory works at the molecular level.
Geologist shines light on Twin Cities caves
If you've ever eyed a cave entrance, a storm drain or sewer somewhere in the Twin Cities and wondered what's inside, University of Minnesota geologist Greg Brick has the answer. Brick, author of "Subterranean Twin Cities," spent two decades researching and exploring all the area's underground spaces.
From science fiction to physical reality
A renowned theoretical physicist ponders the possibility of forcefields, time travel, and other themes of science fiction. He says many of these do not violate the laws of physics, and could become reality in the next century.
Humans vs. animals, a comparative study
A writer investigates what it means to be human by considering how much she is like certain animals. One example: like people, prairie dogs have an extended vocabulary of sounds.
Elk Run investor lays out vision for future of medicine
Biotech investor Steve Burrill laid out his vision today for the future of medicine during a visit to southwest Minnesota. It was his first public stop in the state since he decided to invest in the planned Elk Run BioBusiness Park near Rochester.
St. Olaf students win Rube Goldberg competition
How many St. Olaf College students does it take to change a light bulb? Apparently the answer is 11 -- and it takes them 239 steps and nearly two full minutes to get the job done.