NASA Unveils New Theory on Mars Moons' Origins: Shredded Asteroid Hypothesis Gains Traction

November 20, 2024
NASA Unveils New Theory on Mars Moons' Origins: Shredded Asteroid Hypothesis Gains Traction
  • The findings, published in the journal Icarus on November 20, 2024, indicate that enough fragments could survive collisions to form the moons.

  • These simulations varied factors such as the asteroid's size, spin, speed, and distance to assess the feasibility of this formation process.

  • Their theory suggests that an asteroid was disrupted by Mars' gravitational pull, leading to the formation of a disk of debris that eventually coalesced into the moons.

  • The team conducted extensive computer simulations using advanced computing systems, demonstrating how asteroid debris could scatter into various orbits around Mars.

  • Kegerreis emphasized the importance of exploring new models for the moons' origins, as they are unique in being the only moons orbiting a rocky planet besides Earth.

  • A research team led by Jacob Kegerreis at NASA's Ames Research Center has proposed a new hypothesis regarding the origins of Mars' moons, Phobos and Deimos.

  • Phobos and Deimos are characterized by their small size, irregular shapes, and low density, which have long puzzled scientists.

  • This research is a collaboration between NASA Ames and Durham University, supported by the Institute for Computational Cosmology, highlighting the interdisciplinary effort in understanding moon formation.

  • Studying Phobos and Deimos not only sheds light on their origins but also enhances our understanding of moon formation around exoplanets, expanding knowledge of planetary systems.

  • Kegerreis and his team aim to gather more data on their formation theory before the MMX mission, hoping to simulate the entire formation process in detail.

  • Upcoming missions, including the Japanese Martian Moons eXploration (MMX) set to launch in 2026, aim to further investigate these moons and collect soil samples from Phobos.

  • The analysis of these samples could provide crucial insights; if they resemble Mars' composition, it would support the giant impact theory, while similarities to asteroids would favor the shredded asteroid hypothesis.

Summary based on 4 sources


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