About 13 times per century, Mercury passes between the Earth and the sun in a rare astronomical event known as a planetary transit. Mercury orbits in a plane which is inclined from the orbit of the Earth, moves above or below our line of sight to the sun.
The 2016 transit of Mercury occurred on May 9, between about 7:12 a.m. and 14:42 EDT. The agency Aeronautics and American Space Administration (NASA) captured some stunning images from this amazing astronomical event by Solar Dynamics Observatory of NASA, or SDO.
This event traffic mercury provides a great opportunity to study how planets and stars move in space-information that has been used throughout the centuries to better understand the solar system, and even today in day help scientists calibrate their instruments.