NASA Captures Spooky Photo of the Moon's Shadow on Earth During an Eclipse - Gizmodo
Launched in 2015, EPIC (aboard DSCOVR) has now imaged several eclipse shadows across Earth’s face: the annular eclipse last month joins total eclipse events in the 2016 and 2017 as being captured by EPIC.
Annular solar eclipses happen when the Moon moves between Earth and the Sun, causing the star to appear as a fiery halo around the Moon’s black silhouette.While total solar eclipses blot out the Sun completely, annular solar eclipses leave that solar halo around the Moon, creating an arguably cooler picture for viewers on Earth.This happens because the Moon is more distant from Earth during an annular solar eclipse, making it too small in our field of view to fully cover the Sun.