Mercury Makes Rare Transit In Front Of Sun

Mercury only passes in front of the Sun a few times every century, and the last time was a decade ago. The celestial event is visible from most of Western Europe and North America on Monday 9 May between 12.12pm BST and 7.42pm BST. The simplest way to see it is to watch one of the various live streams, such as those from the  European Space Agency  or  NASA .