Image: NASA`s SDO spots a lunar transit
(PHYSorg.com Space & Earth)

On Oct. 19, 2017, the Moon photobombed NASA`s Solar Dynamics Observatory, or SDO, when it crossed the spacecraft`s view of the Sun, treating us to these shadowy images. The lunar transit lasted about 45 minutes, between 3:41 and 4:25 p.m. EDT, with the Moon covering about 26 percent of the Sun at the peak of its journey. The Moon`s shadow obstructs SDO`s otherwise constant view of the Sun, and the shadow`s edge is sharp and distinct, since the Moon has no atmosphere which would distort sunlight.