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Station Nation: Meet Carlos Fontanot, the Imagery Manager Leaving a Legacy of Visual Storytelling
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By Space Force
Dr. Troy E. Meink was confirmed May 13 by the Senate as 27th Secretary of the Air Force.
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By NASA
3 min read
Preparations for Next Moonwalk Simulations Underway (and Underwater)
When most people think of NASA, they picture rockets, astronauts, and the Moon. But behind the scenes, a group of inventors is quietly rewriting the rules of what’s possible — on Earth, in orbit, and beyond. Their groundbreaking inventions eventually become technology available for industry, helping to shape new products and services that improve life around the globe. For their contributions to NASA technology, we welcome four new inductees into the 2024-2025 NASA Inventors Hall of Fame
A robot for space and the workplace
Myron (Ron) Diftler led the team behind Robonaut 2 (R2), a humanoid robot developed with General Motors. The goal was to create a robot that could help humans both in space and on the factory floor. The R2 robot became the first humanoid robot in space aboard the International Space Station, and part of its technology was licensed for use on Earth, leading to a grip-strengthening robotic glove to help humans with strenuous, repetitive tasks. From factories to space exploration, Diftler’s work has real-world impact.
Some of the toughest electronic chips on and off Earth
Technology developed to one day explore the surface of Venus has to be tough enough to survive the planet where temperatures hit 860°F and the atmosphere is akin to battery acid. Philip Neudeck’s silicon carbide integrated circuits don’t just work — they ran for over 60 days in simulated Venus-like conditions. On Earth, these chips can boost efficiency in wireless communication systems, help make drilling for oil safer, and enable more practical electric vehicles.
From developing harder chip materials to unlocking new planetary missions, Neudeck is proving that the future of electronics isn’t just about speed — it’s about survival.
Hydrogen sensors that could go the distance on other worlds
Gary Hunter helped develop a hydrogen sensor so advanced it’s being considered for a future mission to Titan, Saturn’s icy moon. These and a range of other sensors he’s helped developed have applications that go beyond space exploration, such as factory floors here on Earth.
With new missions on the horizon and smarter sensors in development, Hunter is still pushing the boundaries of what NASA technology can do. Whether it’s Titan, the surface of Venus, or somewhere we haven’t dreamed of yet, this work could help shape the way to get there.
Advanced materials research to make travel safer
Advanced materials, such as foams and composites, are key to unlocking the next generation of manufacturing. From space exploration to industry, Erik Weiser spent years contributing his expertise to the development of polymers, ceramics, metals, nanomaterials, and more. He is named on more than 20 patents. During this time, he provided his foam expertise to the Space Shuttle Columbia accident investigation, the Shuttle Discovery Return-to-Flight Investigation and numerous teams geared toward improving the safety of the shuttle.
Today, Weiser serves as director of the Facilities and Real Estate Division at NASA Headquarters, overseeing the foundation of NASA’s missions. Whether it’s advancing research or optimizing real estate across the agency, he’s helping launch the future, one facility at a time.
Want to learn more about NASA’s game changing innovations? Visit the NASA Inventors Hall of Fame.
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Last Updated May 09, 2025 Related Terms
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By NASA
NASA astronaut and Expedition 72 flight engineer Anne McClain is pictured near one of the International Space Station’s main solar arrays during a spacewalk.NASA/Nichole Ayers In this May 1, 2025, photo taken by fellow NASA astronaut Nichole Ayers, Anne McClain works near one of the International Space Station’s main solar arrays during a spacewalk. During the May 1 spacewalk – McClain’s third and Ayers’ first – the astronaut pair relocated a space station communications antenna and completed the initial mounting bracket installation steps for an International Space Station Rollout Solar Array, or IROSA, that will arrive on a future SpaceX commercial resupply services mission, in addition to some get ahead tasks.
Learn more about station activities by following the space station blog.
Image credit: NASA/Nichole Ayers
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By NASA
6 min read
Quantum Sensing via Matter-Wave Interferometry Aboard the International Space Station
Future space missions could use quantum technologies to help us understand the physical laws that govern the universe, explore the composition of other planets and their moons, gain insights into unexplained cosmological phenomena, or monitor ice sheet thickness and the amount of water in underground aquafers on Earth.
Upgraded hardware being prepared at Jet Propulsion Lab for launch and install into the Cold Atom Lab on the International Space Station. The Science Module in the background enables CAL researchers to conduct atom interferometry research in Earth’s orbit. Credit: NASA/JPL-Caltech NASA’s Cold Atom Lab (CAL), a first-of-its-kind facility aboard the International Space Station, has performed a series of trailblazing experiments based on the quantum properties of ultracold atoms. The tool used to perform these experiments is called an atom interferometer, and it can precisely measure gravity, magnetic fields, and other forces.
Atom interferometers are currently being used on Earth to study the fundamental nature of gravity and are also being developed to aid aircraft and ship navigation, but use of an atom interferometer in space will enable innovative science capabilities.
Physicists have been eager to apply atom interferometry in space, both to enable new measurements for space science and to capitalize on the extended free-fall conditions found in space. This could enable researchers to achieve unprecedented performance from these quantum sensors.
These interferometers, however, require exquisitely sensitive equipment, and they were previously considered too fragile to function for extended periods without hands-on attention. The Cold Atom Lab, which is operated remotely from Earth, has now demonstrated that it is possible to conduct atom interferometry in space. The CAL Science Team has published two papers so far documenting these experimental milestones.
Depiction of the atom interferometer (AI) setup onboard the ISS in CAL (on the right), showing the interior components of the instrument, and the path of a retro-reflected laser beam (red) inside the vacuum system. The expanded image on the left shows the beam entering the vacuum chamber through a window and between pairs of traces on the atom chip, which are used to confine and cool the atoms to ultracold temperatures. Credit: NASA/JPL-Caltech The results of the first study, published in the November 2023 issue of Nature, described the demonstration of simultaneous atom interferometry with both rubidium and potassium quantum gases for the first time in space. The dual-species atom interferometer not only exhibited robust and repeatable operation of atom interferometry in Earth orbit, but it also served as a pathfinder for future experiments that aim to use quantum gases to test the universality of free fall, a key tenet of Einstein’s theory of general relativity.
In the second study, the results of which were featured in the August 2024 issue of Nature Communications, members of the science team used the CAL atom interferometer to measure subtle vibrations of the space station and to remotely measure the frequency of the atom interferometer laser— the first time ultra-cold atoms have been used to detect changes in the surrounding environment in space. This paper also reported on the demonstration of the wave-like nature of matter persisting for the longest ever freefall time (over a tenth of a second) in space.
“Reaching these milestones was incredibly challenging, and our success was not always a given,” said Jason Williams, the Cold Atom Lab project scientist at NASA’s Jet Propulsion Laboratory in Southern California. “It took dedication and a sense of adventure by the team to make this happen.”
Space-based sensors that can measure gravity with high precision have a wide range of potential applications. They could reveal the composition of planets and moons in our solar system, because different materials have different densities that create subtle variations in gravity.
The U.S.-German GRACE-FO (Gravity Recovery and Climate Experiment Follow-on) mission is currently collecting gravity measurements using classical sensors that detect slight changes in gravity to track the movement of water and ice on Earth. A future mission using atom interferometry could provide better precision and stability, revealing even more detail about surface mass changes.
Precise measurements of gravity could also offer insights into the nature of dark matter and dark energy, two major cosmological mysteries. Dark matter is an invisible substance that makes up about 27% of the universe, while the “regular” matter that composes planets, stars, and everything else we can see makes up only 5%. Dark energy makes up the remaining 68% of the universe and is the driver of the universe’s accelerating expansion.
“Atom interferometry could also be used to test Einstein’s theory of general relativity in new ways,” said University of Virginia professor Cass Sackett, a Cold Atom Lab principal investigator. “This is the basic theory explaining the large-scale structure of our universe, and we know that there are aspects of the theory that we don’t understand correctly. This technology may help us fill in those gaps and give us a more complete picture of the reality we inhabit.”
About the size of a minifridge, the Cold Atom Lab launched to the space station in 2018 with the goal of advancing quantum science by placing a long-term facility in the microgravity environment of low Earth orbit. The lab cools atoms to almost absolute zero, or minus 459 degrees Fahrenheit (minus 273 degrees Celsius). At this temperature, some atoms can form a Bose-Einstein condensate, a state of matter in which all atoms essentially share the same quantum identity. As a result, some of the atoms’ typically microscopic quantum properties become macroscopic, making them easier to study.
Quantum properties can sometimes cause atoms to act like solid objects and sometimes like waves. Scientists don’t yet entirely understand how the building blocks of matter can transition between such different physical behaviors, but they’re using quantum technology like what’s available on the Cold Atom Lab to seek answers.
In microgravity, Bose-Einstein condensates can reach colder temperatures and can exist for longer, giving scientists more opportunities to study them. The atom interferometer is among several tools in the CAL facility enabling precision measurements by harnessing the quantum nature of atoms.
Dual-species atom interferometry in space. (Left) Normalized population for ultracold gases of potassium (blue) and rubidium (red) in one of two output states following a simultaneous dual-species atom interferometry sequence. (Right) Correlations observed in the relative population of potassium and rubidium output states. Credit: NASA/JPL-Caltech Due to its wave-like behavior, a single atom can simultaneously travel two physically separate paths. If gravity or other forces are acting on those waves, scientists can measure that influence by observing how the waves recombine and interact.
“I expect that space-based atom interferometry will lead to exciting new discoveries, fantastic quantum technologies impacting everyday life, and will transport us into a quantum future,” said Nick Bigelow, a professor at University of Rochester in New York and Cold Atom Lab principal investigator for a consortium of U.S. and German scientists who co-authored the studies cited above.
Designed and built at the NASA Jet Propulsion Laboratory, Cold Atom Lab is sponsored by the Biological and Physical Sciences (BPS) Division of NASA’s Science Mission Directorate at the Agency’s headquarters in Washington DC and the International Space Station Program at NASA’s Johnson Space Center in Houston, Texas. The work carried out at the Jet Propulsion Laboratory, California Institute of Technology, was executed under a contract with the National Aeronautics and Space Administration.
Learn more about Cold Atom Lab at https://coldatomlab.jpl.nasa.gov/
Just how cold are the atoms in Cold Atom Lab? Find out at https://www.jpl.nasa.gov/news/news.php?feature=7311
To learn more about the Cold Atom Lab’s recent upgrades visit https://www.jpl.nasa.gov/news/upgrading-the-space-stations-cold-atom-lab-with-mixed-reality and https://www.jpl.nasa.gov/news/news.php?feature=7660
Project Lead: Kamal Oudrhiri, Jet Propulsion Laboratory, California Institute of Technology
Sponsoring Organization: Biological and Physical Sciences Division (BPS)
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Last Updated May 06, 2025 Related Terms
Technology Highlights Biological & Physical Sciences Cold Atom Laboratory (CAL) GRACE-FO (Gravity Recovery and Climate Experiment Follow-on) Science-enabling Technology View the full article
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