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NASA Tech Contributes to Soft Moon Landing, Agency Science Underway


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On Feb. 22, 2024, Intuitive Machines’ Odysseus lunar lander captures a wide field of view image of Schomberger crater on the Moon approximately 125 miles (200 km) uprange from the intended landing site, at approximately about 6 miles (10 km) altitude.
Credit: Intuitive Machines

For the first time in more than 50 years, new NASA science instruments and technology demonstrations are operating on the Moon following the first successful delivery of the agency’s CLPS (Commercial Lunar Payload Services) initiative.

Intuitive Machines’ Nova-C lander, called Odysseus, completed a seven-day journey to lunar orbit and executed procedures to softly land near Malapert A in the South Pole region of the Moon at 5:24 p.m. CST on Feb. 22. The lander is healthy, collecting solar power, and transmitting data back to the company’s mission control in Houston. The mission marks the first commercial uncrewed landing on the Moon.

Carrying six NASA science research and technology demonstrations, among other customer payloads, all NASA science instruments completed transit checkouts en route to the Moon. A NASA precision landing technology demonstration also provided critical last-minute assistance to ensure a soft landing. As part of NASA’s Artemis campaign, the lunar delivery is in the region where NASA will send astronauts to search for water and other lunar resources later this decade.

“For the first time in more than half a century, America returned to the Moon. Congratulations to Intuitive Machines for placing the lunar lander Odysseus carrying NASA scientific instruments to a place no person or machine has gone before, the lunar South Pole,” said NASA Administrator Bill Nelson. “This feat from Intuitive Machines, SpaceX, and NASA demonstrates the promise of American leadership in space and the power of commercial partnerships under NASA’s CLPS initiative. Further, this success opens the door for new voyages under Artemis to send astronauts to the Moon, then onward to Mars.” 

During the journey to the Moon, NASA instruments measured the quantity of cryogenic engine fuel as it has been used, and while descending toward the lunar surface, teams collected data on plume-surface interactions and tested precision landing technologies.

Odysseus’ surface operations are underway and expected to take place through Thursday, Feb. 29.

New lunar science, technology

NASA’s Navigation Doppler Lidar for Precise Velocity and Range Sensing (NDL) guidance system for descent and landing ultimately played a key role in aiding the successful landing. A few hours ahead of landing, Intuitive Machines encountered a sensor issue with their navigation system and leaned on NASA’s guidance system for an assist to precisely land. NASA’s instrument operates on the same principles of radar and uses pulses from a laser emitted through three optical telescopes. It measures speed, direction, and altitude with high precision during descent and touchdown.

“We are thrilled to have NASA on the Moon again, and proud of the agency’s contribution to the successful landing with our NDL technology. Congratulations for completing this first lunar delivery for NASA, paving the way for a bright future for our CLPS initiative,” said Nicky Fox. “Some of the NASA science instruments on this mission will bring us insight on lunar plume interactions and conduct radio astronomy. The valiant efforts and innovation demonstrated by Intuitive Machines is exemplary and we are excited for the upcoming lunar deliveries that will follow this first mission.”  

Now that they are on the lunar surface, NASA instruments will focus on investigating lunar surface interactions and radio astronomy. The Odysseus lander also carries a retroreflector array that will contribute to a network of location markers on the Moon for communication and navigation for future autonomous navigation technologies.

Additional NASA hardware aboard the lander includes:

  • Lunar Node 1 Navigation Demonstrator: A small, CubeSat-sized experiment that will demonstrate autonomous navigation that could be used by future landers, surface infrastructure, and astronauts, digitally confirming their positions on the Moon relative to other spacecraft, ground stations, or rovers on the move.
  • Laser Retroreflector Array: A collection of eight retroreflectors that enable precision laser ranging, which is a measurement of the distance between the orbiting or landing spacecraft to the reflector on the lander. The array is a passive optical instrument and will function as a permanent location marker on the Moon for decades to come.   
  • Radio Frequency Mass Gauge: A technology demonstration that measures the amount of propellant in spacecraft tanks in a low-gravity space environment. Using sensor technology, the gauge will measure the amount of cryogenic propellant in Nova-C’s fuel and oxidizer tanks, providing data that could help predict fuel usage on future missions.   
  • Radio-wave Observations at the Lunar Surface of the Photoelectron Sheath: The instrument will observe the Moon’s surface environment in radio frequencies, to determine how natural and human-generated activity near the surface interacts with and could interfere with science conducted there.
  • Stereo Cameras for Lunar Plume-Surface Studies: A suite of four tiny cameras to capture imagery showing how the Moon’s surface changes from interactions with the spacecraft’s engine plume during and after descent.

NASA is committed to supporting its U.S. commercial vendors as they navigate the challenges of sending science and technology to the surface of the Moon.

“In daring to confront one of humanity’s greatest challenges, Intuitive Machines created an entire lunar program that has ventured farther than any American mission to land on the Moon in over 50 years,” said Altemus. “This humbling moment reminds us that pursuing the extraordinary requires both boldness and resilience.”

For more information about CLPS, visit:

https://www.nasa.gov/clps

-end-

Faith McKie / Karen Fox
Headquarters, Washington
202-358-1600
faith.d.mckie@nasa.gov / karen.c.fox@nasa.gov

Nilufar Ramji / Laura Sorto
Johnson Space Center, Houston 
281-483-5111 
nilufar.ramji@nasa.gov / laura.g.sorto@nasa.gov

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Last Updated
Feb 23, 2024
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Jennifer M. Dooren

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      A model of the final envisioned SWIM robot, right, sits beside a capsule holding an ocean-composition sensor. The sensor was tested on an Alaskan glacier in July 2023 through a JPL-led project called ORCAA (Ocean Worlds Reconnaissance and Characterization of Astrobiological Analogs). The wedge-shaped prototype used in most of the pool tests was about 16.5 inches (42 centimeters) long, weighing 5 pounds (2.3 kilograms). As conceived for spaceflight, the robots would have dimensions about three times smaller — tiny compared to existing remotely operated and autonomous underwater scientific vehicles. The palm-size swimmers would feature miniaturized, purpose-built parts and employ a novel wireless underwater acoustic communication system for transmitting data and triangulating their positions.
      Digital versions of these little robots got their own test, not in a pool but in a computer simulation. In an environment with the same pressure and gravity they would likely encounter on Europa, a virtual swarm of 5-inch-long (12-centimeter-long) robots repeatedly went looking for potential signs of life. The computer simulations helped determine the limits of the robots’ abilities to collect science data in an unknown environment, and they led to the development of algorithms that would enable the swarm to explore more efficiently.
      The simulations also helped the team better understand how to maximize science return while accounting for tradeoffs between battery life (up to two hours), the volume of water the swimmers could explore (about 3 million cubic feet, or 86,000 cubic meters), and the number of robots in a single swarm (a dozen, sent in four to five waves).
      In addition, a team of collaborators at Georgia Tech in Atlanta fabricated and tested an ocean composition sensor that would enable each robot to simultaneously measure temperature, pressure, acidity or alkalinity, conductivity, and chemical makeup. Just a few millimeters square, the chip is the first to combine all those sensors in one tiny package.
      Of course, such an advanced concept would require several more years of work, among other things, to be ready for a possible future flight mission to an icy moon. In the meantime, Schaler imagines SWIM robots potentially being further developed to do science work right here at home: supporting oceanographic research or taking critical measurements underneath polar ice.
      More About SWIM
      Caltech manages JPL for NASA. JPL’s SWIM project was supported by Phase I and II funding from NASA’s Innovative Advanced Concepts (NIAC) program under the agency’s Space Technology Mission Directorate. The program nurtures visionary ideas for space exploration and aerospace by funding early-stage studies to evaluate technologies that could transform future NASA missions. Researchers across U.S. government, industry, and academia can submit proposals.
      How the SWIM concept was developed Learn about underwater robots for Antarctic climate science See NASA’s network of ready-to-roll mini-Moon rovers News Media Contact
      Melissa Pamer
      Jet Propulsion Laboratory, Pasadena, Calif.
      626-314-4928
      melissa.pamer@jpl.nasa.gov
      2024-162
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      Last Updated Nov 20, 2024 Related Terms
      Europa Jet Propulsion Laboratory NASA Innovative Advanced Concepts (NIAC) Program Ocean Worlds Robotics Space Technology Mission Directorate Technology Explore More
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