Tens of billions of potentially habitable, Earth-size planets in our galaxy, say astronomers
The nearest such planet may be within 12 light-years
New implantable sensor may allow long-term monitoring of cancer cells and glucose
Carbon nanotubes that detect nitric oxide can be implanted under the skin for more than a year
Americans’ media consumption to soar in 2015
Predicts by 2015, average media consumption will be 15.5 hours a day per person
