Cells control energy metabolism via hedgehog signalling pathway

Cancer, diabetes, and excess body weight have one thing in common: they alter cellular metabolism. Scientists from the Max Planck Institute of Immunobiology and Epigenetics in Freiburg and the Medical University of Vienna ...

Google Maps makes Grand Canyon virtual trek

Google Maps opened a virtual path to the wonders of the Grand Canyon on Thursday by adding panoramic images gathered by hikers with Android-powered camera systems strapped to their backs.