The 2016 Mercury planetary transit is seen in a NASA conceptual image, made of many images captured by the Solar and Heliospheric Observatory (SOHO) during the last Mercury transit in 2006. Mercury will pass between Earth and the sun in the rare astronomical event between about 7:12 a.m. and 2:42 p.m. EDT (11:12 - 18:42 GMT) on May 9, 2016. (Photo/Agencies)
