Mercury transits across the face of the sun May 9, 2016 by zahed SRINAGAR, MAY 9 (UNI)- An astronomer watching a rare celestial event during Mercury sail across the Sun (Transit of Mercury) at the campus of University of Kashmir in Srinagar on Monday. UNI PHOTO-83U NEW DELHI, MAY 9 (UNI):- A child watching Mercury transit at Nehru planetarium in New Delhi on Monday. UNI PHOTO-70U NEW DELHI, MAY 9 (UNI):- People watching Mercury transit at Nehru planetarium in New Delhi on Monday. UNI PHOTO-69U NEW DELHI, MAY 9 (UNI):- People watching Mercury transit at Nehru planetarium in New Delhi on Monday. UNI PHOTO-68U NEW DELHI, MAY 9 (UNI):- People watching Mercury transit at Nehru planetarium in New Delhi on Monday. UNI PHOTO-65U NEW DELHI, MAY 9 (UNI):- People watching Mercury transit at Nehru planetarium in New Delhi on Monday. UNI PHOTO-64U NEW DELHI, MAY 9 (UNI):- People watching Mercury transit at Nehru planetarium in New Delhi on Monday. UNI PHOTO-63U NEW DELHI, MAY 9 (UNI):- People watching Mercury transit at Nehru planetarium in New Delhi on Monday. UNI PHOTO-62U NEW DELHI, MAY 9 (UNI):- Mars Education Team watching Mercury transit at India Gate in New Delhi on Monday. UNI PHOTO-59U NEW DELHI, MAY 9 (UNI):- Mars Education Team watching Mercury transit at India Gate in New Delhi on Monday. UNI PHOTO-58U NEW DELHI, MAY 9 (UNI):- Mars Education Team watching Mercury transit at India Gate in New Delhi on Monday. UNI PHOTO-57U BOYERTOWN, MAY 9 — The planet Mercury is seen in silhouette (lower left) as it transits across the face of the sun in this photo taken in Boyertown, Pennsylvania, United States May 9, 2016. Mercury passes between Earth and the sun only about 13 times a century, with the previous transit taking place in 2006. Courtesy Bill Ingalls/NASA/Handout via REUTERS-23R