NASA’s Curiosity Rover photographed this view of the sun setting from its 956th Martian day on Mars.

The above image is actually a sequence of four images taken over a span of 6 minutes, 51 seconds. Check out the full GIF below.

Said Mark Lemmon of Texas A&M University, College Station who planned the Curiosity mission: “The colors come from the fact that the very fine dust is the right size so that blue light penetrates the atmosphere slightly more efficiently.

“When the blue light scatters off the dust, it stays closer to the direction of the sun than light of other colors does. The rest of the sky is yellow to orange, as yellow and red light scatter all over the sky instead of being absorbed or staying close to the sun.”

So cool, at least nearly as interesting as the heart-shaped craters also discovered on Mars.