Our star chart is designed to get you out learning the night sky within a matter of moments. Just set it for your time and location, make a few tweaks if you like for personal taste, and print it out.

Plotting a graph takes time. Often mathematicians just want to know the key features. These are: shape, location and some key points (such as where the graph crosses the axes or turning points).

A series of life-threatening fires are destroying homes as they race across Los Angeles County and surrounding areas. CNN is tracking the fires in maps and charts ...