The planet Mercury is seen in silhouette, low center, as it transits across the face of the Sun, Monday, Nov. 11, 2019.
The planet Mercury is seen in silhouette, low center, as it transits across the face of the Sun, Monday, Nov. 11, 2019, from Washington, D.C. Mercury’s last transit was in 2016. The next won’t happen again until 2032.
Image Credit: NASA/Bill Ingalls