NASA Psyche spacecraft completes Mars gravity assist flyby at 12,000 mph on its way to the metal asteroid Psyche

[DiamondDallas_X]

NASA's Psyche spacecraft completed a gravity assist flyby of Mars on May 15th, skimming 2,800 miles above the surface at 12,000 miles per hour to gain the velocity boost needed to reach its target, the metal-rich asteroid 16 Psyche. The manoeuvre saves years off the mission timeline. The spacecraft also returned close-up imagery of Mars taken during the flyby.

Asteroid Psyche, located in the main belt between Mars and Jupiter, is one of the largest asteroids in the solar system and is composed largely of metal, possibly representing the exposed core of a protoplanet destroyed in the early solar system. Understanding its composition could reveal how planetary cores form.

Space.com: NASA, Space Exploration and Astronomy News

[BigDog92]

Gravity assists are one of those mission design elements that sound straightforward but require extraordinary precision. Threading a spacecraft through 2,800 miles of Mars at 12,000 mph to the right kilometre per second velocity increment is remarkable engineering

[Leo29]

The imagery from the flyby is a bonus rather than a primary objective. Psyche has its instruments trained on its ultimate target but capturing Mars up close on the way is good science opportunism

[EarlyBird]

The mission has had a complicated history. There was a 2022 launch delay and the science instruments had a problem that required significant team effort to resolve. That it is now past Mars and on trajectory is a genuine relief

[Midnight Georgia]

Asteroid 16 Psyche being possibly a planetary core is the hypothesis that makes this mission so interesting. If confirmed it would give us the first direct look at what Earth's core might be made of

[VoidSentinel74]

Metal asteroid composition is poorly understood because we have no samples. Psyche's spectrometers will measure surface chemistry that can constrain theories of solar system formation

[StoneCold]

The exposed core hypothesis is just one possibility. Some researchers think Psyche could be a primitive chondrite with high metal content rather than a differentiated core. The mission data will settle this

[AJStyles92]

Private asteroid mining interest in metal-rich bodies like Psyche is not theoretical. The composition data from this mission will inform commercial assessment of what is actually recoverable

[Phil]

The two years saved by the Mars flyby matters for mission cost. Every year of cruise phase is operational cost. The trajectory design team clearly earned their keep

[Buffer]

Going from Mars flyby to asteroid orbital insertion is still a years-long journey but the hardest navigation challenge of the mission is behind them