Deep Space : A Rare Image of Our Moon Transiting The Earth, Every Classroom Needs

 NASA's Space Climate Observatory is about 1.6 Million km from Earth. A Real Image of our Moon transiting the Earth. ⠀Captured by a NASA satellite. Should be in every classroom.

The moon passed between ‪NASA‬’s Deep Space Climate Observatory and the Earth, allowing the satellite to capture this rare image of the moon’s far side in full sunlight. As the moon is tidally locked to the Earth and doesn’t rotate, we only ever see the one face from the Earth.
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The Green line is an image artifact due to how this series of pictures were taken. EPIC, the camera on the climate observatory, took 3 narrowband images, one in ultraviolet, one visible, and one infrared, combining them to create this closer to true-colour photo (the climate observatory's primary job is not to take pictures for the public's enjoyment, so they needed to jerry-rig this solution together). Since the 3 pictures were taken 10 seconds apart from each other, the moon had moved slightly, and the 3 colour filters shot the moon in slightly different positions, creating the green line around the right hand side of the moon in this image, and a red line around the left hand side (more easily viewable in the high resolution version of this image you can find on NASA's website). From the Deep Space Climate Observatory page on this picture: "Combining three images taken about 30 seconds apart as the Moon moves produces a slight but noticeable camera artifact on the right side of the Moon. Because the Moon has moved in relation to the Earth between the time the first (red) and last (green) exposures were made, a thin green offset appears on the right side of the Moon when the three exposures are combined. This natural lunar movement also produces a slight red and blue offset on the left side of the Moon in these unaltered images. 🌍

Credit @nasa.