NASA's Psyche spacecraft performed a brief flyby of Mars on May 15, 2026, to adjust its trajectory toward a metallic asteroid [1].
This maneuver is critical for the mission's success because it uses the planet's gravity to accelerate the probe. Without this gravity assist, the spacecraft would lack the necessary velocity to reach its final destination in a timely manner.
The spacecraft passed within approximately 2,800 miles of the planet [4], a distance closer than many of the moons orbiting Mars [4]. During this encounter, the probe traveled at speeds exceeding 12,000 mph [3]. This event occurred more than two years after the mission's initial launch [1].
Scientists utilized the flyby to bend the path of the spacecraft and increase its speed [1]. The gravity of Mars acted as a celestial slingshot, pushing the probe toward the metal-rich asteroid known as 16 Psyche [2].
Beyond the navigational benefits, the probe captured thousands of images during the encounter [4]. Researchers hope these images will provide data on the Martian environment, including the search for a dusty ring around the planet that has not been previously seen [4].
The mission continues its journey through the solar system, utilizing these precise planetary encounters to maintain its course toward the asteroid [2].
“The probe flew within 2,800 miles of Mars”
This successful gravity assist demonstrates the precision of deep-space navigation. By leveraging planetary mass to gain speed, NASA reduces the amount of fuel required for long-duration missions, allowing for heavier scientific payloads. The additional imaging of Mars provides a secondary scientific benefit, potentially revealing new atmospheric or orbital structures before the probe reaches the unique metallic composition of 16 Psyche.
