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    • By NASA
      Robert Williams is a senior mechanical design engineer and the structures subject matter expert in the Engineering and Test Directorate at NASA’s Stennis Space Center.NASA/Danny Nowlin Living up to, and maintaining, the standard of excellence associated with NASA is what drives Robert Williams at NASA’s Stennis Space Center near Bay St. Louis, Mississippi.
      A native of Gulfport, Mississippi, Williams said he has had the opportunity to work with and be mentored by “some truly exceptional” engineers, some with careers reaching back to the Apollo era.
      “I cannot overstate the vast amount of practical knowledge and experience we have at NASA Stennis,” Williams said. “We know how to get things done, and if we do not know, I can guarantee we will figure it out.”
      Williams is a senior mechanical design engineer and the structures subject matter expert for the NASA Stennis Engineering and Test Directorate.
      He provides technical oversight related to engineering mechanics and machine design by reviewing analysis and design packages from NASA Stennis contractors and NASA engineers for ongoing projects.
      Williams also supports projects by performing analysis and creating detailed models, drawings, and system level designs, mostly at the versatile four-stand E Test Complex, where NASA Stennis has 12 active test cells capable of various component, engine, and stage test activities to support the agency and commercial companies.
      In support of NASA’s Artemis campaign of returning astronauts to the Moon, Williams also has reviewed structural and pipe stress analysis for the exploration upper stage project that will test a new SLS (Space Launch System) rocket stage to fly on future Artemis missions.
      He performed similar review work for Green Run testing of the SLS core stage at NASA Stennis ahead of the successful launch of the Artemis I uncrewed mission around the Moon. 
      Overall, Williams has been a part of projects on every test stand throughout more than eight years with NASA and five years as a contractor. He has been tasked with solving challenging problems, both individually and as a part of teams.
      There were times when he was not sure if he or the team would be able to solve the problem or address it effectively, but each time, the NASA Stennis team found a way.
      “Over the span of my career, I have yet to be in a situation where the challenge was not met,” he said.
      The opportunity to work with “pretty much all the major space companies in some capacity” is most interesting to Williams. “The best thing is that being a small organization within a relatively small center, there are always opportunities to develop new skills and capabilities to help fill a need or gap,” he said.
      No matter the task, Williams looks forward to supporting space innovation while living up to, and maintaining, the standard of excellence associated with NASA for the benefit of all. 
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    • By NASA
      What does the future of space exploration look like? At the 2025 FIRST Robotics World Championship in Houston, NASA gave student robotics teams and industry leaders a first-hand look—complete with lunar rovers, robotic arms, and real conversations about shaping the next era of discovery. 
      Students and mentors experience NASA exhibits at the 2025 FIRST Robotics World Championship at the George R. Brown Convention Center in Houston from April 16-18. NASA/Sumer Loggins NASA engaged directly with the Artemis Generation, connecting with more than 55,000 students and 75,000 parents and mentors. Through interactive exhibits and discussions, students explored the agency’s robotic technologies, learned about STEM career paths and internships, and gained insight into NASA’s bold vision for the future. Many expressed interest in internships—and dreams of one day contributing to NASA’s missions to explore the unknown for the benefit of all humanity. 
      Multiple NASA centers participated in the event, including Johnson Space Center in Houston; Jet Propulsion Laboratory in Southern California; Kennedy Space Center in Florida; Langley Research Center in Virginia; Ames Research Center in California; Michoud Assembly Facility in New Orleans; Armstrong Flight Research Center in Edwards, California; Glenn Research Center in Cleveland; Goddard Space Flight Center in Greenbelt, Maryland; and the Katherine Johnson Independent Verification and Validation Facility in West Virginia. Each brought unique technologies and expertise to the exhibit floor. 
      FIRST Robotics attendees explore NASA’s exhibit and learn about the agency’s mission during the event.NASA/Robert Markowitz Displays highlighted key innovations such as: 
      Automated Reconfigurable Mission Adaptive Digital Assembly Systems: A modular system of small robots and smart algorithms that can autonomously assemble large-scale structures in space.  Cooperative Autonomous Distributed Robotic Exploration: A team of small lunar rovers designed to operate independently, navigating and making decisions together without human input.  Lightweight Surface Manipulation System AutoNomy Capabilities Development for Surface Operations and Construction: A robotic arm system built for lunar construction tasks, developed through NASA’s Early Career Initiative.  Space Exploration Vehicle: A pressurized rover prototype built for human exploration of planetary surfaces, offering attendees a look at how future astronauts may one day travel across the Moon or Mars.  Mars Perseverance Rover: An exhibit detailing the rover’s mission to search for ancient microbial life and collect samples for future return to Earth.  In-Situ Resource Utilization Pilot Excavator: A lunar bulldozer-dump truck hybrid designed to mine and transport regolith, supporting long-term exploration through the Artemis campaign.  Visitors view NASA’s Space Exploration Vehicle on display.NASA/Robert Markowitz “These demonstrations help students see themselves in NASA’s mission and the next frontier of lunar exploration,” said Johnson Public Affairs Specialist Andrew Knotts. “They can picture their future as part of the team shaping how we live and work in space.” 
      Since the FIRST Championship relocated to Houston in 2017, NASA has mentored more than 250 robotics teams annually, supporting elementary through high school students. The agency continued that tradition for this year’s event, and celebrated the fusion of science, engineering, and creativity that defines both robotics and space exploration. 
      NASA’s booth draws crowds at FIRST Robotics 2025 with hands-on exhibits. NASA/Robert Markowitz Local students also had the chance to learn about the Texas High School Aerospace Scholars program, which offers Texas high school juniors hands-on experience designing space missions and solving engineering challenges—an early gateway into NASA’s world of exploration. 
      As the competition came to a close, students and mentors were already looking ahead to the next season—energized by new ideas, strengthened friendships, and dreams of future missions. 
      NASA volunteers at the FIRST Robotics World Championship on April 17, 2025. NASA/Robert Markowitz “It was a true privilege to represent NASA to so many inspiring students, educators, and mentors,” said Jeanette Snyder, aerospace systems engineer for Gateway. “Not too long ago, I was a robotics student myself, and I still use skills I developed through FIRST Robotics in my work as a NASA engineer. Seeing so much excitement around engineering and technology makes me optimistic for the future of space exploration. I can’t wait to see these students become the next generation of NASA engineers and world changers.” 
      With the enthusiastic support of volunteers, mentors, sponsors, and industry leaders, and NASA’s continued commitment to STEM outreach, the future of exploration is in bold, capable hands. 
      See the full event come to life in the panorama videos below.
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    • By NASA
      Landing on the Moon is not easy, particularly when a crew or spacecraft must meet exacting requirements. For Artemis missions to the lunar surface, those requirements include an ability to land within an area about as wide as a football field in any lighting condition amid tough terrain.

      NASA’s official lunar landing requirement is to be able to land within 50 meters (164 feet) of the targeted site and developing precision tools and technologies is critically important to mission success.

      NASA engineers recently took a major step toward safe and precise landings on the Moon – and eventually Mars and icy worlds – with a successful field test of hazard detection technology at NASA’s Kennedy Space Center Shuttle Landing Facility in Florida.

      A joint team from the Aeroscience and Flight Mechanics Division at NASA’s Johnson Space Center’s in Houston and Goddard Space Flight Center in Greenbelt, Maryland, achieved this huge milestone in tests  of the Goddard Hazard Detection Lidar from a helicopter at Kennedy in March 2025. 

      NASA’s Hazard Detection Lidar field test team at Kennedy Space Center’s Shuttle Landing Facility in Florida in March 2025. NASA The new lidar system is one of several sensors being developed as part of NASA’s Safe & Precise Landing – Integrated Capabilities Evolution (SPLICE) Program, a Johnson-managed cross-agency initiative under the Space Technology Mission Directorate to develop next-generation landing technologies for planetary exploration. SPLICE is an integrated descent and landing system composed of avionics, sensors, and algorithms that support specialized navigation, guidance, and image processing techniques. SPLICE is designed to enable landing in hard-to-reach and unknown areas that are of potentially high scientific interest.

      The lidar system, which can map an area equivalent to two football fields in just two seconds, is a crucial program component. In real time and compensating for lander motion, it processes 15 million short pulses of laser light to quickly scan surfaces and create real-time, 3D maps of landing sites to support precision landing and hazard avoidance. 

      Those maps will be read by the SPLICE Descent and Landing Computer, a high-performance multicore computer processor unit that analyzes all SPLICE sensor data and determines the spacecraft’s velocity, altitude, and terrain hazards. It also computes the hazards and determines a safe landing location. The computer was developed by the Avionics Systems Division at Johnson as a platform to test navigation, guidance, and flight software. It previously flew on Blue Origin’s New Shepard booster rocket.

      The NASA team prepares the Descent and Landing Computer for Hazard Detection Lidar field testing at Kennedy Space Center. NASA For the field test at Kennedy, Johnson led test operations and provided avionics and guidance, navigation, and control support. Engineers updated the computer’s firmware and software to support command and data interfacing with the lidar system. Team members from Johnson’s Flight Mechanics branch also designed a simplified motion compensation algorithm and NASA’s Jet Propulsion Laboratory in Southern California contributed a hazard detection algorithm, both of which were added to the lidar software by Goddard. Support from NASA contractors Draper Laboratories and Jacobs Engineering played key roles in the test’s success.

      Primary flight test objectives were achieved on the first day of testing, allowing the lidar team time to explore different settings and firmware updates to improve system performance. The data confirmed the sensor’s capability in a challenging, vibration-heavy environment, producing usable maps. Preliminary review of the recorded sensor data shows excellent reconstruction of the hazard field terrain.

      A Hazard Detection Lidar scan of a simulated hazard field at Kennedy Space Center (left) and a combined 3D map identifying roughness and slope hazards. NASA Beyond lunar applications, SPLICE technologies are being considered for use on Mars Sample Return, the Europa Lander, Commercial Lunar Payload Services flights, and Gateway. The DLC design is also being evaluated for potential avionics upgrades on Artemis systems.

      Additionally, SPLICE is supporting software tests for the Advancement of Geometric Methods for Active Terrain Relative Navigation (ATRN) Center Innovation Fund project, which is also part of Johnson’s Aeroscience and Flight Mechanics Division. The ATRN is working to develop algorithms and software that can use data from any active sensor – one measuring signals that were reflected, refracted, or scattered by a body’s surface or its atmosphere – to accurately map terrain and provide absolute and relative location information. With this type of system in place, spacecraft will not need external lighting sources to find landing sites.

      With additional suborbital flight tests planned through 2026, the SPLICE team is laying the groundwork for safer, more autonomous landings on the Moon, Mars, and beyond. As NASA prepares for its next era of exploration, SPLICE will be a key part of the agency’s evolving landing, guidance, and navigation capabilities.
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