On day 956 of the Curiosity mission on Mars, the 6-wheel NASA rover watched the sun go below the horizon.
And although this is not the first sunset of Curiosity, and not the first sunset observed by the robot on Mars, but this is exactly the first sunset in color.
It is interesting to note that if you were standing on a Martian surface, it is quite a similar color to what you would see with your own eyes. The pictures were taken with a Mastcam camera, and the color of the sunset may seem a little illogical. But It is worth noting that Mastcam is a bit less sensitive to blue than the human eye, and therefore a person would make it more blue.
To obtain a series of such images, the rover took 7 minutes.