• Research News

    A New Piece in the Matter–Antimatter Puzzle

    On March 24, 2025 at the annual Rencontres de Moriond conference taking place in La Thuile, Italy, the LHCb collaboration at CERN reported a new milestone in our understanding of the subtle yet profound differences between matter and antimatter. In its analysis of large Read More
  • Research News

    Researchers Play a Microscopic Game of Darts with Melted Gold

    Sometimes, what seems like a fantastical or improbable chain of events is just another day at the office for a physicist. In a recent experiment by University of Maryland researchers at the Laboratory for Physical Sciences, a scene played out that would be right Read More
  • Research News

    IceCube Search for Extremely High-energy Neutrinos Contributes to Understanding of Cosmic Rays

    Neutrinos are chargeless, weakly interacting particles that are able to travel undeflected through the cosmos. The IceCube Neutrino Observatory at the South Pole searches for the sources of these astrophysical neutrinos in order to understand the origin of high-energy particles called cosmic rays and, Read More
  • Research News

    Twisted Light Gives Electrons a Spinning Kick

    It’s hard to tell when you’re catching some rays at the beach, but light packs a punch. Not only does a beam of light carry energy, it can also carry momentum. This includes linear momentum, which is what makes a speeding train hard to Read More
  • Research News

    Repurposing Qubit Tech to Explore Exotic Superconductivity

    Decades of quantum research are now being transformed into practical technologies, including the superconducting circuits that are being used in physics research and built into small quantum computers by companies like IBM and Google. The established knowledge and technical infrastructure are allowing researchers to harness quantum technologies in Read More
  • Research News

    New Design Packs Two Qubits into One Superconducting Junction

    Quantum computers are potentially revolutionary devices and the basis of a growing industry. However, their technology isn’t standardized yet, and researchers are still studying the physics behind the diverse ways to build these quantum devices. Even the most basic building blocks of a quantum Read More
  • Research News

    HAWC Finds High-Energy Gamma-Ray Emissions from Microquasar V4641 Sagittarii

    A new study in Nature, “Ultra-high-energy gamma-ray bubble around microquasar V4641 Sgr,"   has  revealed a groundbreaking discovery by researchers from the High Altitude Water Cherenkov (HAWC) observatory:  TeV gamma-ray emissions from V4641 Sagittarii (V4641 Sgr), a binary system composed of a black hole and a main sequence Read More
  • Research News

    Nobel Prize Celebrates Interplay of Physics and AI

    On October 8, the Nobel Prize in physics was awarded to John Hopfield and Geoffrey E. Hinton for their foundational discoveries and inventions that have enabled artificial neural networks to be used for machine learning—a widely used form of AI. The award highlights how Read More
  • Research News

    High Altitude Water Cherenkov Observatory Sheds Light on Origin of Galactic Cosmic Rays

    HAWC observes Ultra-High Energy gamma rays confirming Galactic Center as a source of Ultra-High Energy cosmic ray protons in the Milky Way The High-Altitude Water Cherenkov (HAWC) Observatory, located on the slopes of the Sierra Negra volcano in Mexico, has achieved a groundbreaking milestone Read More
  • 1 A New Piece in the Matter–Antimatter Puzzle
  • 2 Researchers Play a Microscopic Game of Darts with Melted Gold
  • 3 IceCube Search for Extremely High-energy Neutrinos Contributes to Understanding of Cosmic Rays
  • 4 Twisted Light Gives Electrons a Spinning Kick
  • 5 Repurposing Qubit Tech to Explore Exotic Superconductivity
  • 6 New Design Packs Two Qubits into One Superconducting Junction
  • 7 HAWC Finds High-Energy Gamma-Ray Emissions from Microquasar V4641 Sagittarii
  • 8 Nobel Prize Celebrates Interplay of Physics and AI
  • 9 High Altitude Water Cherenkov Observatory Sheds Light on Origin of Galactic Cosmic Rays

Physics is Phun

Department News

  • Sclafani Cited for Dissertation Work Post-doctoral Associate Stephen Sclafani has been selected for the American Physical Society’s Ceclia Payne-Gaposchkin Doctoral Dissertation Award, which recognizes doctoral thesis research in astrophysics and encourages effective written and oral presentation of research results.    Sclafani was cited for performing the first observation of diffuse high-energy neutrinos from Read More
  • Senior Physics Major Becomes an Antarctic Ice Quake Detective When senior physics major Zoe Schlossnagle arrived at the University of Maryland in fall 2021, she never could have imagined the opportunities she would seize. “I was sure that I was going to receive a vigorous physics education, of course,” Schlossnagle said. “But I also Read More
  • Building an Error-Creating Quantum Computer Alaina Green is happy to face a challenge. Before becoming one of Joint Quantum Institute's newest Fellows, she cruised around the Atlantic in a 34-foot sailboat with only her husband, occasionally facing waves as tall as a two-story building.  “It was a little bit scary Read More
  • Mapping Maryland’s Methane: UMD Initiative Takes Flight University of Maryland Physics Professor Daniel Lathrop is making significant strides in tracking methane emissions on UMD’s campus and beyond.  In 2024, Lathrop and his team surveyed the stinky vapor plumes on the UMD campus caused by the university’s aging energy infrastructure for their Remediation Read More
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Upcoming Events

2 Apr
QuICS Seminar: Andrew Lucas
Date Wed, Apr 2, 2025 11:00 am - 12:00 pm
2 Apr
RIT in Quantum Information Science
Wed, Apr 2, 2025 1:00 pm - 1:50 pm
2 Apr
HEP Seminar
Wed, Apr 2, 2025 2:30 pm - 3:30 pm
2 Apr
A'Hearn Astronomy Lecture
Wed, Apr 2, 2025 4:00 pm - 5:00 pm
3 Apr
CMT Student Seminar: Seth Musser
Thu, Apr 3, 2025 1:00 pm - 2:00 pm
3 Apr
QMC Colloquium: Joseph Falson, Caltech
Thu, Apr 3, 2025 2:00 pm - 3:30 pm
3 Apr
Geometry and Physics RIT
Thu, Apr 3, 2025 3:30 pm - 4:30 pm
4 Apr
Friday Quantum Seminar: Anthony Munson
Fri, Apr 4, 2025 12:00 pm - 1:00 pm
7 Apr
JQI Seminar - Nathalie de Leon
Mon, Apr 7, 2025 11:00 am - 12:00 pm

Taking Satellite Technology—and Physics—to New Heights

Jim CarrJim CarrJames Carr (Ph.D. ’89, physics) has been making his mark on satellite technology for more than three decades. But his passion for space launched long before his professional career did.

“I grew up in the days of the race to the moon and I was very drawn into that,” he recalled. “I followed all of the Apollo missions. In fact, I used to pretend I was sick and couldn’t go to school so I could watch the coverage on the networks. I was very interested in the space program and that carried forward into what I ended up doing professionally.”

Today, Carr is president and CEO of Carr Astronautics. For more than 30 years, the company has provided problem-solving technology and expertise to clients in the aerospace industry, specializing in U.S. and international weather satellites.

A running start

Carr got a running start on a future in physics and space technology as a boy growing up in Pittsburgh, Pennsylvania. At home, science was part of life. Carr’s first mentor was his father, a scientist who authored two books and more than 100 scientific papers and received a dozen patents during his professional career.

“My father worked at Westinghouse Research Labs; he was a physicist,” Carr explained. “Back in that day, we called it solid state physics, now we would call it condensed matter. So, I grew up surrounded by those environmental influences.”

When it was time for college, Carr stayed close to home and, like his father, was attracted to physics and mathematics. He got his undergraduate degree at Carnegie Mellon University, then headed to Washington, D.C., to join his wife who had already graduated.

“She was a software engineer and she came down to Washington, D.C., because that’s where the jobs were,” Carr said. “She found a job with IBM in the Washington suburbs.”

Carr landed a position working on military projects with a D.C.-area company, but his longer-term sights were set on a very different mission.

“I wanted to work with NASA”

“I had a tremendous first job and I really enjoyed it,” he recalled. “But I wanted to be involved in more civilian things, what you’d call space exploration. I wanted to work with NASA.”

Within three years, Carr was working at NASA’s Goddard Space Flight Center in Greenbelt, Maryland, doing the kinds of projects he once dreamed about. Much of his work focused on remote sensing—processing and analyzing data collected in space, especially weather data.

“I started out helping out on various programs—science experiments that were flying on the space shuttle,” Carr explained. “Then I got involved in a program called Landsat. I was helping NASA integrate all of the work from the different contractors that were contributing to the program and then developing algorithms for processing the data on the ground.”

In 1983, Carr got his master’s degree in physics at Georgetown, while still working at NASA. By then, he was involved in a new operational weather satellite program called GOES (Geostationary Operational Environmental Satellite).

Ground zero for GOES

“When I got on the GOES program, it was sort of ground zero and it was new and there were a lot of problems to figure out,” Carr said. “It was a more challenging and fun environment to work in than some of the projects I’d done before and I really enjoyed it.”

Later in 1983, Carr decided he was ready for a very different kind of challenge. He applied to the University of Maryland’s physics Ph.D. program.

“I wanted to have a big impact on science and there were a couple of courses at Maryland that really brought me into particle physics, which is not what I did at NASA,” he explained. “I decided that was where the really exciting frontiers of physics were so I should go all in.”

Carr’s years at Maryland, and especially his work with the particle physics theory group, made a life-changing impact.

“Oh yeah, there’s no question, I consider my time in the physics department at Maryland to be formative,” he said. “It was important for my formation as a professional person, very key, a very positive experience.”

Carr was inspired and influenced by his thesis advisor, S. James Gates Jr., who is now a College Park Professor of Physics at UMD.

“He was a young faculty member at the time, and I was drawn to him because of he was working at the frontiers of physics,” Carr recalled. “His energy and enthusiasm were compelling, and as I got to know him, I found him to be as fine a human being as a physicist—very supportive of the intellectual and professional growth of his students.”

After receiving his doctorate in 1989, Carr had an important career choice to make. He could keep working at NASA or pursue a postdoc and a career in academia.

The offer that launched a company

Carr decided to stay at NASA, but his entrepreneurial side was pushing him to do something more.

“I saw the companies that were doing work with NASA and I didn’t understand why I couldn’t run one of those companies myself,” Carr explained. “I decided that I would do it, that would be my career path. I would continue working in the NASA community and I would look for an opportunity to start a business.”

That opportunity came in 1991.

“It happened when I was presenting a paper at a conference about the work I was doing with GOES,” Carr recalled. “I was approached by some people from Europe who proposed that I come to work for them as a consultant to help them in a program called Meteosat Second Generation, which was similar to the American GOES weather satellite I’d been working on for NASA.”

That offer launched Carr Astronautics. Though Carr was the company’s only employee, he had his first client—the French aerospace manufacturer Aérospatiale—and his first project, the Meteosat Second Generation weather satellite. Carr moved his family to Cannes, France, where he worked on Meteosat for the next five years. After they returned to the U.S., Carr’s company took off.

“I came back to the U.S. in ’96 and at that time I was acquiring other business at NASA and also at NOAA and we just continued to grow,” Carr said. “I hired some people that I had known from working with them at NASA and I started working with some American aerospace companies like Boeing Corporation.”

In the decades that followed, Carr Astronautics built a track record of success in satellite technology.

“One of our templates for success has been to partner with large aerospace companies like Boeing and Aérospatiale and help them design their satellite systems. These are billion-dollar space systems and it takes a giant team of engineers to design them, and we have niche expertise,” Carr explained. “The other thing we do is we build software systems to transform the raw data that comes from the spacecraft into something that is scientifically sound and is consumable by the weather community including the National Weather Service.”

And the work is far from over. By 2023, a SpaceX Falcon 9 rocket will launch the Intelsat communications satellite, and with it an air pollution-sensing instrument that Carr Astronautics has worked on for years. The instrument, called TEMPO, is an imaging spectrometer designed to detect trace gases—including pollutants like nitrogen dioxide, sulfur dioxide and ozone—by the “fingerprints” they leave in the sunlight reflected off Earth’s surface.

“TEMPO will allow us to understand how the rhythms of human activity affect our environment hour by hour,” Carr said. “It will be part of a constellation of similar sensors to cover North America, Europe and Asia.”

Honoring his first mentor

Through all his professional growth and success, Carr has always appreciated the impact his very first mentor—his father—had on his life. And, in 2007, he found a way to pay it forward. Working with UMD, he established the W.J. Carr Lecture Series on Superconductivity and Advanced Materials in the Department of Physics to honor the man who introduced him to physics.

“My father passed away and we started this before he passed,” Carr explained. “I wanted to memorialize him in some way, and I thought this was a good thing to do.”

Carr’s endowment supports an annual lecture series that brings eminent physicists to College Park to speak and interact with students in UMD’s physics program and Quantum Materials Center.

“They’ve brought in really top people to talk, and typically they stay for a week, doing seminars and lectures and collaborations,” he explained. “I think my father would have liked that.”

It’s been more than 30 years since Carr turned his passion for space into a successful business, advancing the technology of weather forecasting one satellite at a time. Still energized by the work, he’s glad he’s been able to make a difference.

“I am very proud of what we do,” he reflected. “The weather affects us in very big ways with hurricanes and tornados and droughts and in very small ways with the decisions we make every day. So it’s extremely important to have good information and good forecasts. I find it very gratifying that the work that I’ve done—the satellite technology—has provided a foundation for all of that.”

Written by Leslie Miller