In a groundbreaking venture not witnessed since 1972, NASA is ushering in a new era of lunar exploration in 2024 by deploying science experiments on the moon. The deployment is made possible through a fusion of cutting-edge technologies and strategic collaborations between public and private entities. Unlike previous missions where NASA took the lead in constructing and operating lunar landers, the Commercial Lunar Payload Services (CLPS) program delegates these responsibilities to commercial companies, marking a shift towards a collaborative public-private partnership.
Under CLPS, uncrewed landers from various vendors will facilitate NASA’s return to lunar scientific experimentation after a hiatus of more than 50 years. Approximately a dozen selected companies will construct and operate the landers, providing NASA with the opportunity to act as a customer rather than the sole driving force behind the missions.
Scheduled for launch in the initial months of 2024, the CLPS program encompasses several payloads, with Astrobotics and Intuitive Machines leading the way. Despite a fuel issue cutting Astrobotics’ journey short, the momentum continues with Intuitive Machines poised for a mid-February launch. NASA plans two to three landings annually over the next few years, revitalizing lunar exploration.
As a radio astronomer and co-investigator on NASA’s ROLSES program (Radiowave Observations at the Lunar Surface of the photoElectron Sheath), I am part of the scientific teams leveraging CLPS for pioneering research. ROLSES, crafted by the NASA Goddard Space Flight Center under the leadership of Natchimuthuk Gopalswamy, will embark on a mission in February 2024 to collect vital data on the lunar environment near its south pole.
The moon, especially its far side, emerges as an ideal venue for radio astronomy, providing an unobstructed view of signals from extraterrestrial sources. Unlike Earth, the moon lacks an ionosphere and boasts approximately 2,000 miles of rock shielding its far side, rendering it radio quiet. This unique characteristic enables us to conduct high-sensitivity observations free from interference, unlocking unprecedented scientific insights.
ROLSES will pioneer the placement of radio telescopes on the lunar surface, a historic endeavor slated for completion by 2026. Our initial mission will focus on assessing environmental conditions on the moon, studying the interaction between solar wind and the lunar surface, and delving into the creation of charged gas (plasma). These findings hold the potential to enhance astronaut safety during lunar exploration.
Beyond lunar studies, ROLSES will cast its gaze towards the sun, unraveling the mysteries of solar emissions and shock waves. Additionally, we aim to utilize the moon’s surface as a template for observing radio emissions from exoplanets, shedding light on potential habitability through magnetic field analysis.
Looking ahead, the Lunar Surface Electromagnetic Experiment at Night (LuSEE-Night) in 2026 will mark the first foray into cosmology on the moon. A collaborative effort between NASA and the Department of Energy, LuSEE-Night will explore the radio-quiet far side of the moon, providing an optimal environment for cosmological observations during the lunar night. This mission aims to delve into the dark ages of the universe, probing the era preceding the formation of the first stars and galaxies, a realm untouched by the James Webb Space Telescope.
In this uncharted cosmological epoch, we anticipate unveiling new physics, investigating dark matter, early dark energy, and scrutinizing fundamental models of physics and cosmology. The LuSEE-Night mission stands as a profound scientific and cosmological experiment, poised to unlock the mysteries of our universe in ways previously deemed impossible. The journey into the cosmos enters an exciting new chapter, driven by innovation, collaboration, and the quest for knowledge.