Scientists from the University of Colorado Boulder have successfully calculated one million orbits within cislunar space (the region lying between the Earth and the Moon) using simulations and supercomputing. The research, led by Dr. Marcus Holzinger, a space situational awareness expert, is crucial in supporting NASA’s Artemis program. The Artemis program aims to send humans back to the Moon by 2024 and establish a sustainable human presence there by the end of the decade.
The research team leveraged the power of the University’s Research Computing’s supercomputer, Summit, to run simulations of potential orbits. The supercomputer was crucial in handling the vast number of variables and calculations involved in the simulations. This research will provide valuable data to NASA for planning future lunar missions and understanding the dynamics of cislunar space.
The cislunar space is a complex environment with gravitational influences from both the Earth and the Moon, along with the gravitational effects of the Sun and other planets. This makes navigating this region particularly challenging. The researchers’ simulations accounted for these factors and provided valuable insights into the physics of cislunar space.
The one million orbits calculated in this research represent a potential highway system for future space missions. The orbits not only included paths to the Moon but also potential orbits around the Moon and Earth-Moon Lagrange points. These are points in space where the gravitational forces of the Earth and Moon balance each other, allowing spacecraft to essentially “park” in these areas.
The researchers used a method called differential evolution to optimize the orbits. This method involves testing a large number of potential solutions and gradually refining them until an optimal solution is found. The computation of one million orbits required running the simulations for nearly six months.
This research is groundbreaking in the field of space exploration. It allows for a greater understanding of the cislunar region and provides a roadmap for future lunar missions. The data generated by this work will be invaluable in planning the trajectory of future spacecraft, ensuring their safety, and optimizing their energy use.
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