On May 3, 2026, NASA’s Psyche mission captured a remarkable colorized image of Mars from approximately 3 million miles (or 4.8 million kilometers) away. This observation is part of the mission’s preparations for a crucial gravity assist scheduled for May 15, which will enhance the spacecraft’s speed and adjust its trajectory toward asteroid Psyche, with an anticipated arrival in 2029.
The spacecraft approached Mars from a high-phase angle, resulting in the planet appearing as a thin crescent, reminiscent of our own Moon during its new phase. In this configuration, the Sun is positioned out of frame, illuminating both Mars and Psyche from above.
The captured image, designated as PIA26750, is a zoomed-out view that lacks visible stars, as they are significantly dimmer than the sunlight reflected off Mars. The observation was made using the mission’s multispectral imager with a panchromatic or broadband filter, featuring an exposure time of just 2 milliseconds. Despite this brief exposure, the crescent appears exceptionally bright, although some areas of the image are oversaturated.
The brightness observed is due to sunlight reflecting off Mars’s surface and scattering through its atmosphere, which contains varying amounts of dust. This atmospheric dust can rapidly change, complicating predictions regarding the crescent’s anticipated brightness prior to capturing this early image.
Interestingly, a gap is visible on the right side of the crescent, aligning with Mars’s icy north polar cap, which is currently in winter. Mission specialists suggest that seasonal clouds and hazes may be forming in this region, potentially obstructing the atmospheric dust’s ability to scatter sunlight as effectively as it does elsewhere on the planet.
The imager team of the Psyche mission will continue to acquire, process, and interpret similar images leading up to the close approach on May 15. These images serve primarily to calibrate the cameras and assess their performance in flight, acting as a preparatory exercise for the eventual approach to asteroid Psyche in 2029.
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