Story perspectives
Triton's Tug: Neptune's Tilt and Future Collision Risk
3/31/2026
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Story summary
- Rodney Gomes of São Paulo State University says Neptune's 28-degree axial tilt results from Triton's gravitational tug.
- Triton orbits Neptune in a retrograde path.
- Triton may have been a dwarf planet captured from the Kuiper Belt.
- Simulations indicate Triton's orbit could produce inclinations exceeding 20 degrees.
- In about 3.6 billion years, Triton could collide with Neptune or break apart, forming a new ring system.
