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By NASA
Editor’s Note: The following is one of three related articles about the NASA Data Acquisition System and related efforts. Please visit Stennis News – NASA to access accompanying articles.
NASA software engineer Brandon Carver updates how the main data acquisition software processes information at NASA’s Stennis Space Center, where he has contributed to the creation of the center’s first-ever open-source software.NASA/Danny Nowlin Syncom Space Services software engineer Shane Cravens, the chief architect behind the first-ever open-source software at NASA’s Stennis Space Center, verifies operation of the site’s data acquisition hardware.NASA/Danny Nowlin NASA’s Stennis Space Center near Bay St. Louis, Mississippi, has released its first-ever open-source software, a peer review tool to facilitate more efficient and collaborative creation of systems applications, such as those used in its frontline government and commercial propulsion test work.
“Everyone knows NASA Stennis as the nation’s premier rocket propulsion test site,” said David Carver, acting chief of the Office of Test Data and Information Management. “We also are engaged in a range of key technology efforts. This latest open-source tool is an exciting example of that work, and one we anticipate will have a positive and widespread impact.”
The new NASA Data Acquisition System Peer Review Tool was developed over several years, built on lessons learned as site developers and engineers created software tools for use across the center’s sprawling test complex. It is designed to simplify and amplify the collaborative review process, allowing developers to build better and more effective software applications.
The new NASA Stennis Peer Review tool was developed using the same software processes that built NDAS. As center engineers and developers created software to monitor and analyze data from rocket propulsion tests, they collaborated with peers to optimize system efficiency. What began as an internal review process ultimately evolved into the open-source code now available to the public.
“We refined it (the peer review tool) over a period of time, and it has improved our process significantly,” said Brandon Carver (no relation), a NASA Stennis software engineer. “In early efforts, we were doing reviews manually, now our tool handles some of these steps for us. It has allowed us to focus more on reviewing key items in our software.”
Developers can improve time, efficiency, and address issues earlier when conducting software code reviews. The result is a better, more productive product.
The NASA Stennis tool is part of the larger NASA Data Acquisition System created at the center to help monitor and collect propulsion test data. It is designed to work with National Instruments LabVIEW, which is widely used by systems engineers and scientists to design applications. LabVIEW is unique in using graphics (visible icon objects) instead of a text-based programming language to create applications. The graphical approach makes it more challenging to compare codes in a review process.
“You cannot compare your code in the same way you do with a text-based language,” Brandon Carver said. “Our tool offers a process that allows developers to review these LabVIEW-developed programs and to focus more time on reviewing actual code updates.”
LabVIEW features a comparison tool, but NASA Stennis engineers identified ways they could improve the process, including by automating certain steps. The NASA Stennis tool makes it easier to post comments, pictures, and other elements in an online peer review to make discussions more effective.
The result is what NASA Stennis developers hope is a more streamlined, efficient process. “It really optimizes your time and provides everything you need to focus on right in front of you,” Brandon Carver said. “That’s why we wanted to open source this because when we were building the tool, we did not see anything like it, or we did not see anything that had features that we have.”
“By providing it to the open-source community, they can take our tool, find better ways of handling things, and refine it,” Brandon Carver said. “We want to allow those groups to modify it and become a community around the tool, so it is continuously improved. Ultimately, a peer review is to make stronger software or a stronger product and that is also true for this peer review tool.
“It is a good feeling to be part of the process and to see something created at the center now out in the larger world across the agency,” Brandon Carver said. “It is pretty exciting to be able to say that you can go get this software we have written and used,” he acknowledged. “NASA engineers have done this. I hope we continue to do it.”
To access the peer review tool developed at NASA Stennis, visit NASA GitHub.
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Last Updated May 08, 2025 EditorNASA Stennis CommunicationsContactC. Lacy Thompsoncalvin.l.thompson@nasa.gov / (228) 688-3333LocationStennis Space Center Related Terms
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By NASA
Credit: NASA NASA’s on-demand streaming service, NASA+, launched a FAST (Free Ad-Supported Television) channel on Prime Video Tuesday, giving viewers another way to watch the agency’s aeronautics, human spaceflight, science, and technology missions unfold on screen.
As the agency continues to improve life on Earth and inspire new generations through innovation, exploration, and discovery, NASA+ is dedicated to sharing stories through live launch coverage, original documentaries, family-friendly content, and more.
“Streaming NASA+ on multiple platforms allows the agency to more efficiently share its missions, from launching astronauts to the International Space Station, to going behind the scenes with the team that defends Earth against asteroids, to showcasing new, high-definition images of the cosmos,” said Wes Brown, acting associate administrator for the Office of Communications at NASA Headquarters in Washington. “NASA provides an up-close look at how the agency explores the secrets of the universe for the benefit of all by ensuring content is easily accessible and widely available to the public.”
In addition to the FAST channel, NASA+ is available to download without a subscription on most major platforms via the NASA App on iOS and Android mobile and tablet devices, as well as streaming media players like Roku, Apple TV, and Fire TV. Users also may stream online at:
https://plus.nasa.gov
-end-
Jennifer Dooren / Jessica Taveau
Headquarters, Washington
202-358-1600
jennifer.m.dooren@nasa.gov / jessica.c.taveau@nasa.gov
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Last Updated May 06, 2025 EditorJessica TaveauLocationNASA Headquarters Related Terms
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By NASA
Explore This Section Perseverance Home Mission Overview Rover Components Mars Rock Samples Where is Perseverance? Ingenuity Mars Helicopter Mission Updates Science Overview Objectives Instruments Highlights Exploration Goals News and Features Multimedia Perseverance Raw Images Images Videos Audio More Resources Mars Missions Mars Sample Return Mars Perseverance Rover Mars Curiosity Rover MAVEN Mars Reconnaissance Orbiter Mars Odyssey More Mars Missions Mars Home 2 min read
Searching for Spherules to Sample
Subsurface spherules: This image of the Hare Bay abrasion patch was acquired by the WATSON camera on Sol 1480 (April 19, 2025), showing dark-colored spherules set in a fine-grained light-toned matrix. These spherules appear to be smaller versions of similar structures that have been found in numerous rocks in the vicinity. Perseverance is currently working to collect a sample of these spherules to return to Earth. WATSON (Wide Angle Topographic Sensor for Operations and eNgineering) is a close-range color camera that works with the rover’s SHERLOC instrument (Scanning Habitable Environments with Raman and Luminescence for Organics and Chemicals); both are located on the turret at the end of the rover’s robotic arm. NASA/JPL-Caltech Written by Denise Buckner, Postdoctoral Fellow at NASA’s Goddard Space Flight Center
Over the past few weeks, Perseverance has been investigating some curious spherules peppered across the “Witch Hazel Hill” region along the rim of Jezero crater. A striking cluster of the small bubble-shaped stones were first spotted by the Mastcam-Z instrument on Sol 1442 (March 11, 2025) at “Broom Point,” in a rock named “St. Pauls Bay.” A few sols later, a similar assemblage was discovered by the SuperCam instrument at the “Mattie Mitchell” outcrop near “Puncheon Rock.” As the rover continued along its traverse, spherules continued to appear. At the targets St. Pauls Bay and Mattie Mitchell, the spherules are densely packed and almost look like bunches of grapes. Elsewhere, similar smaller spherules were found intermixed with other grains within the rock. At a target called “Wreck Apple” at the “Sally’s Cove” outcrop, individual spherules were set in a matrix of coarse, dark grains. Even more of these circular features are embedded in finer-grained, layered bedrock at a nearby area called “Dennis Pond.”
Spherules at St. Pauls Bay: NASA’s Mars Perseverance rover acquired this image, a striking cluster of spherules, on March 11, 2025 – Sol 1442, or Martian day 1,442 of the Mars 2020 mission – at the local mean solar time of 11:12:40. Perseverance used its Left Mastcam-Z camera; Mastcam-Z is a pair of cameras located high on the rover’s mast. NASA/JPL-Caltech/ASU Spherules at Wreck Apple: NASA’s Mars Perseverance rover found smaller spherules in a coarse-grained matrix. The rover captured this image using the WATSON camera on March 27, 2025 – Sol 1458, or Martian day 1,458 of the Mars 2020 mission – at the local mean solar time of 15:36:04. WATSON (Wide Angle Topographic Sensor for Operations and eNgineering) is a close-range color camera located on the turret at the end of the rover’s robotic arm. NASA/JPL-Caltech Although the team was intrigued by the spherule-rich layers at Sally’s Cove and Dennis Pond, these outcrops were challenging for the rover arm to access. After some searching to find an accessible target, the team decided to perform an abrasion at a neighboring outcrop, called “Pine Pond,” which contained an extension of the Dennis Pond layers. The team picked the target “Hare Bay” in hopes of finding spherules within a rock interior, and conducting proximity science observations with PIXL and SHERLOC to investigate their composition and internal structure. Images of the abrasion patch taken by WATSON show that Hare Bay contains light-toned medium-sized grains, with millimeter-sized spherules dotted throughout the rock! Leading hypotheses for the origin of these spherules include formation by volcanic activity or impact-related processes.
Having found an accessible spherule-bearing rock, the team is currently hard at work collecting a spherule-filled sample! Combined with the information already gathered by Mastcam-Z, SuperCam, PIXL, SHERLOC, and WATSON, future laboratory analyses could help solve the mystery of when, where, and how these spherules formed, which can in turn detangle the geological events that formed and transformed the surface of Mars over billions of years!
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Last Updated May 05, 2025 Related Terms
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