Google’s self-driving cars have made impressive progress in the past few years, logging over 700,000 accident-free miles without human intervention, according to the company (there has been at least one accident reportedly caused by a human driver).
The chart shows the sky at the start of December. The positions of the stars on other nights can be found from previous charts (our last appeared on November 3) for they rise two hours earlier each month.
The Obama administration is establishing a new agency to combat the deepening threat from cyberattacks, and its mission will be to fuse intelligence from around the government when a crisis occurs.