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A place holder for the upcoming event:
http://www.esa.int/spaceinimages/Images/2016/05/Magic_Eye_Mercury
http://www.esa.int/spaceinimages/Images/2016/05/Magic_Eye_Mercury
On 9 May, at 11:10 GMT, Mercury will begin making its way across the face of the Sun – an astronomical event known as a transit. During the transit, which will last for several hours and be at least partially visible across most of the world, the planet will be seen as a small black dot silhouetted against our star.
To mark the event, this week’s Space Science Image of the Week allows Mercury to take centre stage. Mercury is a remarkable planet: it is the smallest and innermost planet in the Solar System, with an orbit that is both the fastest and the most eccentric. It boasts fascinating surface geology, including countless craters, ridges, highlands, plains, mountains and valleys.