NASA’s Psyche spacecraft photographed a striking series of views of Mars as it executed a gravity assist in May 2026, with the planet appearing first as a narrow crescent and then growing to fill the probe’s camera frame as approach distance decreased.
From crescent to near-full disk
The images were taken by Psyche’s multispectral imager between May 2 and May 15, 2026. Early frames show Mars at a high phase angle — meaning the spacecraft was viewing largely the planet’s night side — so sunlight illuminated only a thin crescent. As Psyche closed the distance, that crescent widened and the planet eventually overflowed the instrument’s field of view, at which point the mission team switched to capturing high-resolution surface imagery.
Mission scientists combined the approach, close-encounter and departure shots into a continuous time-lapse that documents the entire Mars encounter. The composite sequence highlights both changing illumination geometry and the probe’s changing perspective as it used Mars’ gravity to alter its trajectory.
What the images show — and what they mean
- Illumination effects: A high phase angle produced the initial thin crescent appearance.
- Proximity change: Successive frames grew larger as Psyche neared Mars, then exceeded the imager's field of view at closest approach.
- Instrument use: The multispectral imager provided both the approach views and later higher-resolution surface images.
The visuals are primarily a documentation of the encounter geometry and the spacecraft’s optical performance en route to more distant objectives. Psyche’s Mars pass was a planned maneuver to gain velocity and redirect the spacecraft; during such gravity assists, careful imaging and instrument operations also help teams verify pointing, navigation and camera performance under changing lighting conditions.
| Event | Date range |
|---|---|
| Imaging of Mars approach | May 2–15, 2026 |
| Gravity assist / close approach | Within same period (images culminated as planet overfilled imager) |
These images add to an expanding set of spacecraft views of the inner solar system taken for engineering and science purposes. While Psyche’s primary mission objectives lie elsewhere, the Mars encounter provided an opportunity to collect useful remote-sensing data under unique lighting conditions and to test instruments ahead of subsequent mission phases.
For more information about the mission and the image sequence, NASA has posted mission materials and the time-lapse produced from the approach, close approach and departure imagery.
