Engineering Reality: Lee Bingham Leads Lunar Surface Simulation Support for Artemis Campaign
If you design a new tool for use on Earth, it is easy to test and practice using that tool in its intended environment. But what if that tool is destined for lunar orbit or will be used by astronauts on the surface of the Moon?
NASA’s Simulation and Graphics Branch can help with that. Based at Johnson Space Center in Houston, the branch’s high-fidelity, real-time graphical simulations support in-depth engineering analyses and crew training, ensuring the safety, efficiency, and success of complex space endeavors before execution. The team manages multiple facilities that provide these simulations, including the Prototype Immersive Technologies (PIT) Lab, Virtual Reality Training Lab, and the Systems Engineering Simulator (SES).
Lee Bingham is an aerospace engineer on the simulation and graphics team. His work includes developing simulations and visualizations for the NASA Exploration Systems Simulations team and providing technical guidance on simulation and graphics integration for branch-managed facilities. He also leads the branch’s human-in-the-loop Test Sim and Graphics Team, the Digital Lunar Exploration Sites Unreal Simulation Tool (DUST), and the Lunar Surface Mixed-Reality with the Active Response Gravity Offload System (ARGOS) projects.
Lee Bingham demonstrates a spacewalk simulator for the Gateway lunar space station during NASA’s Tech Day on Capitol Hill in Washington, D.C. Image courtesy of Lee Bingham
Bingham is particularly proud of his contributions to DUST, which provides a 3D visualization of the Moon’s South Pole and received Johnson’s Exceptional Software of the Year Award in 2024. “It was designed for use as an early reference to enable candidate vendors to perform initial studies of the lunar terrain and lighting in support of the Strategy and Architecture Office, human landing system, and the Extravehicular Activity and Human Surface Mobility Program,” Bingham explained. DUST has supported several human-in-the-loop studies for NASA. It has also been shared with external collaborators and made available to the public through the NASA Software Catalog.
Bingham has kept busy during his nearly nine years at Johnson and said learning to manage and balance support for multiple projects and customers was very challenging at first. “I would say ‘yes’ to pretty much anything anyone asked me to do and would end up burning myself out by working extra-long hours to meet milestones and deliverables,” he said. “It has been important to maintain a good work-life balance and avoid overcommitting myself while meeting demanding expectations.”
Lee Bingham tests the Lunar Surface Mixed Reality and Active Response Gravity Offload System trainer at Johnson Space Center. Image courtesy of Lee Bingham
Bingham has also learned the importance of teamwork and collaboration. “You can’t be an expert at everything or do everything yourself,” he said. “Develop your skills, practice them regularly, and master them over time but be willing to ask for help and advice. And be sure to recognize and acknowledge your coworkers and teammates when they go above and beyond or achieve something remarkable.”
Lee Bingham (left) demonstrates a lunar rover simulator for Apollo 16 Lunar Module Pilot Charlie Duke. Image courtesy of Lee Bingham
He hopes that the Artemis Generation will be motivated to tackle difficult challenges and further NASA’s mission to benefit humanity. “Be sure to learn from those who came before you, but be bold and unafraid to innovate,” he advised.
NASA’s Curiosity Rover Detects Largest Organic Molecules Found on Mars
Researchers analyzing pulverized rock onboard NASA’s Curiosity rover have found the largest organic compounds on the Red Planet to date. The finding, published Monday in the Proceedings of the National Academy of Sciences, suggests prebiotic chemistry may have advanced further on Mars than previously observed.
Scientists probed an existing rock sample inside Curiosity’s Sample Analysis at Mars (SAM) mini-lab and found the molecules decane, undecane, and dodecane. These compounds, which are made up of 10, 11, and 12 carbons, respectively, are thought to be the fragments of fatty acids that were preserved in the sample. Fatty acids are among the organic molecules that on Earth are chemical building blocks of life.
Living things produce fatty acids to help form cell membranes and perform various other functions. But fatty acids also can be made without life, through chemical reactions triggered by various geological processes, including the interaction of water with minerals in hydrothermal vents.
While there’s no way to confirm the source of the molecules identified, finding them at all is exciting for Curiosity’s science team for a couple of reasons.
Curiosity scientists had previously discovered small, simple organic molecules on Mars, but finding these larger compounds provides the first evidence that organic chemistry advanced toward the kind of complexity required for an origin of life on Mars.
This graphic shows the long-chain organic molecules decane, undecane, and dodecane. These are the largest organic molecules discovered on Mars to date. They were detected in a drilled rock sample called “Cumberland” that was analyzed by the Sample Analysis at Mars lab inside the belly of NASA’s Curiosity rover. The rover, whose selfie is on the right side of the image, has been exploring Gale Crater since 2012. An image of the Cumberland drill hole is faintly visible in the background of the molecule chains.
NASA/Dan Gallagher
The new study also increases the chances that large organic molecules that can be made only in the presence of life, known as “biosignatures,” could be preserved on Mars, allaying concerns that such compounds get destroyed after tens of millions of years of exposure to intense radiation and oxidation.
“Our study proves that, even today, by analyzing Mars samples we could detect chemical signatures of past life, if it ever existed on Mars,” said Caroline Freissinet, the lead study author and research scientist at the French National Centre for Scientific Research in the Laboratory for Atmospheres and Space Observations in Guyancourt, France
In 2015, Freissinet co-led a team that, in a first, conclusively identified Martian organic molecules in the same sample that was used for the current study. Nicknamed “Cumberland,” the sample has been analyzed many times with SAM using different techniques.
NASA’s Curiosity rover drilled into this rock target, “Cumberland,” during the 279th Martian day, or sol, of the rover’s work on Mars (May 19, 2013) and collected a powdered sample of material from the rock’s interior. Curiosity used the Mars Hand Lens Imager camera on the rover’s arm to capture this view of the hole in Cumberland on the same sol as the hole was drilled. The diameter of the hole is about 0.6 inches. The depth of the hole is about 2.6 inches.
NASA/JPL-Caltech/MSSS
Curiosity drilled the Cumberland sample in May 2013 from an area in Mars’ Gale Crater called “Yellowknife Bay.” Scientists were so intrigued by Yellowknife Bay, which looked like an ancient lakebed, they sent the rover there before heading in the opposite direction to its primary destination of Mount Sharp, which rises from the floor of the crater.
The detour was worth it: Cumberland turns out to be jam-packed with tantalizing chemical clues to Gale Crater’s 3.7-billion-year past. Scientists have previously found the sample to be rich in clay minerals, which form in water. It has abundant sulfur, which can help preserve organic molecules. Cumberland also has lots of nitrates, which on Earth are essential to the health of plants and animals, and methane made with a type of carbon that on Earth is associated with biological processes.
Perhaps most important, scientists determined that Yellowknife Bay was indeed the site of an ancient lake, providing an environment that could concentrate organic molecules and preserve them in fine-grained sedimentary rock called mudstone.
“There is evidence that liquid water existed in Gale Crater for millions of years and probably much longer, which means there was enough time for life-forming chemistry to happen in these crater-lake environments on Mars,” said Daniel Glavin, senior scientist for sample return at NASA’s Goddard Space Flight Center in Greenbelt, Maryland, and a study co-author.
The recent organic compounds discovery was a side effect of an unrelated experiment to probe Cumberland for signs of amino acids, which are the building blocks of proteins. After heating the sample twice in SAM’s oven and then measuring the mass of the molecules released, the team saw no evidence of amino acids. But they noticed that the sample released small amounts of decane, undecane, and dodecane.
Because these compounds could have broken off from larger molecules during heating, scientists worked backward to figure out what structures they may have come from. They hypothesized these molecules were remnants of the fatty acids undecanoic acid, dodecanoic acid, and tridecanoic acid, respectively.
The scientists tested their prediction in the lab, mixing undecanoic acid into a Mars-like clay and conducting a SAM-like experiment. After being heated, the undecanoic acid released decane, as predicted. The researchers then referenced experiments already published by other scientists to show that the undecane could have broken off from dodecanoic acid and dodecane from tridecanoic acid.
The authors found an additional intriguing detail in their study related to the number of carbon atoms that make up the presumed fatty acids in the sample. The backbone of each fatty acid is a long, straight chain of 11 to 13 carbons, depending on the molecule. Notably, non-biological processes typically make shorter fatty acids, with less than 12 carbons.
It’s possible that the Cumberland sample has longer-chain fatty acids, the scientists say, but SAM is not optimized to detect longer chains.
Scientists say that, ultimately, there’s a limit to how much they can infer from molecule-hunting instruments that can be sent to Mars. “We are ready to take the next big step and bring Mars samples home to our labs to settle the debate about life on Mars,” said Glavin.
This research was funded by NASA’s Mars Exploration Program. Curiosity’s Mars Science Laboratory mission is led by NASA’s Jet Propulsion Laboratory in Southern California; JPL is managed by Caltech for NASA. SAM (Sample Analysis at Mars) was built and tested at NASA’s Goddard Space Flight Center in Greenbelt, Maryland. CNES (the French Space Agency) funded and provided the gas chromatograph subsystem on SAM. Charles Malespin is SAM’s principal investigator.
Two actively forming stars are responsible for the shimmering hourglass-shaped ejections of gas and dust that gleam in orange, blue, and purple in this representative color image captured by NASA’s James Webb Space Telescope. This star system, called Lynds 483, is named for American astronomer Beverly T. Lynds, who published extensive catalogs of “dark” and “bright” nebulae in the early 1960s.
The two protostars are at the center of the hourglass shape, in an opaque horizontal disk of cold gas and dust that fits within a single pixel. Much farther out, above and below the flattened disk where dust is thinner, the bright light from the stars shines through the gas and dust, forming large semi-transparent orange cones.
Preparations for Next Moonwalk Simulations Underway (and Underwater)
Overview
Welcome to the Career Transition Assistance Plan (CTAP) services page. Provided here are different resources to support informed steps toward a new career opportunity in the public or private sector.
Transition Assistance
NASA is partnering with OPM to offer a 1-day workshop covering multiple areas associated with career transitions. The workshop will be offered virtually on pre-scheduled dates and will include:
Career Exploration (1 Hour)
Job Search Strategy (1 Hour)
Resume Writing (2 Hours)
Interview Techniques (2 Hours)
One-On-One Counseling
NASA will follow-up with employees eligible for CTAP to enroll them in the workshop and share participation details.
Transition Resources
Below are links to guidance, resources, and tools that are helpful during a career move, including resume preparation, interview preparation, networking strategies, job search assistance, and more.
Resume Preparation
Resources to help craft strong professional resumes that showcase personal skills and experience, including specialized training and tools.
Resources to prepare for job interviews and improve interview skills, including information about the interview process, how to prepare and respond to interview questions, and platforms to conduct practice interviews and receive feedback on responses.
Guidance on how to leverage LinkedIn for job search and professional networking, and providing feedback on LinkedIn profiles, optimizing keywords, and increasing visibility to recruiters.
Free online resources for identifying adjacent or new career opportunities, including job matching websites and websites offering personality or career assessments.
NASA’s Employee Assistance Program (EAP) offers free, confidential counseling that can be used to obtain employment counseling and support during a career transition, as well as referrals to other needed resources.
NASA Invites Media to SpaceX’s 32nd Resupply Launch to Space Station
The SpaceX Falcon 9 rocket carrying the Dragon spacecraft lifts off from Launch Complex 39A at NASA’s Kennedy Space Center in Florida on Nov. 4, 2024, on the company’s 31st commercial resupply services mission for the agency to the International Space Station.
Credit: SpaceX
Media accreditation is open for the next launch to deliver NASA science investigations, supplies, and equipment to the International Space Station.
NASA and SpaceX are targeting no earlier than Monday, April 21, to launch the SpaceX Dragon spacecraft on the company’s Falcon 9 rocket from Launch Complex 39A at the agency’s Kennedy Space Center in Florida. This launch is the 32nd SpaceX commercial resupply services mission to the orbital laboratory for the agency.
Credentialing to cover prelaunch and launch activities is open to U.S. media. The application deadline for U.S. citizens is 11:59 p.m., EDT, Friday, April 4. All accreditation requests must be submitted online at:
Credentialed media will receive a confirmation email after approval. NASA’s media accreditation policy is available online. For questions about accreditation, or to request special logistical support, email: ksc-media-accreditat@mail.nasa.gov. For other questions, please contact NASA Kennedy’s newsroom at: 321-867-2468.
Para obtener información sobre cobertura en español en el Centro Espacial Kennedy o si desea solicitor entrevistas en español, comuníquese con Antonia Jaramillo o Messod Bendayan a: antonia.jaramillobotero@nasa.gov o messod.c.bendayan@nasa.gov.
Each resupply mission to the station delivers scientific investigations in the areas of biology and biotechnology, Earth and space science, physical sciences, and technology development and demonstrations. Cargo resupply from U.S. companies ensures a national capability to deliver scientific research to the space station, significantly increasing NASA’s ability to conduct new investigations aboard humanity’s laboratory in space.
Along with food and essential equipment for the crew, Dragon is delivering a variety of experiments, including a demonstration of refined maneuvers for free-floating robots. Dragon also carries an enhanced air quality monitoring system that could protect crew members on exploration missions to the Moon and Mars, and two atomic clocks to examine fundamental physics concepts, such as relativity, and test worldwide synchronization of precision timepieces.
Astronauts have occupied the space station continuously since November 2000. In that time, 283 people from 23 countries have visited the orbital outpost. The space station is a springboard to NASA’s next great leap in exploration, including future missions to the Moon under the Artemis campaign, and human exploration of Mars.
Learn more about NASA’s commercial resupply missions at:
