Mars flyby helps NASA probe lock onto metal asteroid target for 2029 encounter

NASA's asteroid probe, Psyche, has successfully executed a precise gravity assist maneuver around Mars. On May 15, the spacecraft passed within 4,600 kilometers of the Red Planet, using its gravitational pull to increase speed and adjust its course for its long journey.

The maneuver, conducted at a remarkable speed of approximately 20,000 kilometers per hour, was described by NASA as a "perfectly executed gravity assist flyby." This critical maneuver ensures Psyche is on the correct trajectory to meet the metal-rich asteroid '16' Psyche in the summer of 2029.

Beyond its navigational purpose, the flyby allowed Psyche to capture thousands of high-resolution images of Mars' surface and atmosphere. NASA recently released a time-lapse video compiled from these images, offering a unique visual record of the encounter.

Psyche embarked on its mission from Earth in October 2023. Its ultimate destination is the asteroid '16' Psyche, located about three times farther from the Sun than Earth. This potato-shaped asteroid, with its longest dimension measuring 280 kilometers, is estimated to be composed of 30% to 60% metal, primarily iron and nickel, similar to Earth's core.

Scientists believe the metals on Psyche may be remnants of the core of a protoplanet, a celestial body that failed to coalesce into a full planet after numerous collisions in the early solar system. The mission to Psyche marks the first time a celestial body composed mainly of metal, rather than ice or rock, will be explored.

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This gravity assist flyby was perfectly executed, putting the Psyche spacecraft on the correct trajectory for its rendezvous with the asteroid in the summer of 2029.