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Updated: May 29, 2025

Simulating Imaging of Large Scale Radio Arrays on the Lunar Surface
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Grand canyons on the Moon.

David A Kring1, Danielle P Kallenborn2,3, Gareth S Collins3

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High-energy ejecta from the Schrödinger basin carved lunar canyons comparable to the Grand Canyon. This study reveals the impactor's trajectory and energy, showing debris avoided ancient lunar south pole regions vital for Artemis astronauts.

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Area of Science:

  • Planetary Science
  • Lunar Geology
  • Impact Cratering

Background:

  • The Schrödinger basin on the Moon is a large impact structure.
  • Impact events significantly alter planetary surfaces.

Purpose of the Study:

  • To analyze the formation of lunar canyons carved by impact ejecta.
  • To determine the trajectory and energy of the impactor that created the Schrödinger basin.
  • To map the distribution of impact ejecta and its implications for future lunar exploration.

Main Methods:

  • Photogeologic mapping of lunar canyons and ejecta deposits.
  • Analysis of crater excavation asymmetry.
  • Calculation of ejecta flow directions, impact speed, and energy.

Main Results:

  • Two large canyons were carved by high-energy ejecta from the Schrödinger impact.
  • The impact trajectory was determined, showing asymmetrical excavation and debris transport.
  • The canyons were formed in under ten minutes by the impact's energy.

Conclusions:

  • Most excavated debris was directed away from the lunar south pole.
  • This minimizes burial of ancient lunar units targeted by Artemis astronauts.
  • Impact dynamics can significantly shape lunar topography and influence exploration targets.