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Like Trains in the Night

Image: NASA/Goddard/Arizona State University
Image: NASA/Goddard/Arizona State University

In rare spacecraft-on-spacecraft action, NASA’s Lunar Reconnaissance Orbiter captured a photo of another lunar orbiter: South Korea’s Danuri probe. Danuri looks very distorted in the photo—it appears “10 times its size in the opposite direction of travel because of the relative high travel velocities between the two spacecraft,” NASA explained.