This Week: Scraps of ancient textiles found
In the News: Soil: Key to solving the food crisis?
New pix from Mars show sand dunes on the move. Mars has been dry for 1.5 billion years; could massive erosion be due to wind? Yes, says a new report that tracked dunes with precise new images. Surprise: dunes move as fast on Mars as on Earth!
As high-tech giants buy patents and launch lawsuits. How does the patent system work? Why does it fail? What does it mean to be “new, non-obvious and useful”? What will be the impact of the new patent law — the biggest change in 60 years? Why should we care?
How do homing pigeons find their way on their amazing migrations? For a decade, scientists thought iron-bearing nerve cells in the beak can detect Earth’s magnetic field. But those iron granules are in immune cells. So how do the birds do it?
Native agriculture could be a sophisticated response to a challenging environment. What were the secrets of permaculture, companion cropping and corn farming? Could these techniques contribute to modern farming?
As colony collapse disorder continues to attack honeybee hives, a new study shows that a common insecticide interferes with their return flights. Although the disorder probably has many causes, agricultural chemicals have long been key suspects, and this study adds to the suspicion!
Sometimes, scientists feel the need to leave the lab and warn the public about onrushing hazards. Rowland warned about ozone, but others are warning about warming. Does scientific culture encourage or hinder going public? Does the helpful response to ozone depletion suggest we’ll succeed in confronting global warming?
Advances in genetics raise the stakes in genetic counseling, but the genetic role in disease can be complicated, elusive. What role do faith, personality and knowledge play in the complex discussions over genetic disease?
As Asian carp approach the Great Lakes, ecologists seek to forestall a devastating invasion. Electric fish barriers on Chicago’s canals — built to dump wastewater into the Mississippi — are blocking carp from reaching Lake Michigan. Many scientists prefer closing the canals, but the shipping industry objects. Who’s right?