DO NOT FORGET THAT IT IS DANGEROUS TO OBSERVE THE SUN WITHOUT SPECIAL PROTECTION! The only completely safe way is to project an image of the sun on a white surface (for instance, a piece of paper or cardboard).

The transit is now under way. Here is one of the early images from ESO Garching ! Mercury can be seen as a small dot at around 1 o'clock. Observe also the sunspot at the bottom of the image. Images are updated every minute on the webcam of ESO.

Here is a collection of recent images obtained in different places.