In 2014, the whole wide world is going back to square one – for a day. On September 21st everyone can take a break, and give the world a break.  Read some tips on being emission free.

Car-free day encourages motorists to refrain from using their car for a day.  Most cities have their own websites for car-free day – here is one for the world.

The shadows of Europa and Callisto cross the face of Jupiter simultaneously, best seen from India and central Asia.