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Citizen Scientists Use NASA Open Science Data to Research Life in Space
2023 Workshop of Analysis Working Group members, Washington, D.C., November 14, 2023. Now, you are invited to join their quest to understand how life can thrive in deep space! Want to learn more first? Join our live virtual event April 17 at 3pm Eastern Time to hear an overview of the OSDR AWG’s operations. Photo: NASA OSDR Team How can life thrive in deep space? The Open Science Data Repository Analysis Working Groups invite volunteers from all backgrounds to help answer this question. Request to join these citizen science groups to help investigate how life adapts to space environments, exploring topics like radiation effects, microgravity’s impact on human and plant health, and how microbes change in orbit.
Currently, nine Analysis Working Groups (AWGs) hold monthly meetings to advance their specific focus areas. Participants collaborate using an online platform, the AWG “Forum-Space”, where they connect with peers and experts, join discussions, and contribute to over 20 active projects.
The AWGs work with data primarily from the NASA Open Science Data Repository (OSDR), a treasure trove of spaceflight data on physiology, molecular biology, bioimaging, and much more. For newcomers, there are tutorials and a comprehensive paper covering all aspects of the repository and the AWG community. You can explore 500+ studies, an omics multi-study visualization portal, the environmental data app, and RadLab, a portal for radiation telemetry data. (“Omics” refers to fields of biology that end in “omics,” like “genomics”.)
Each of the nine AWGs has a Lead who organizes their group and holds monthly virtual meetings. Once you join, make sure to connect with the Lead and get on the agenda so you can introduce yourself. Learn more about the AWGs here.
Have an idea for a new project? Propose a new project and help lead it! From data analysis and visualization to shaping data standards and conducting literature meta-analyses, there’s a place for everyone to contribute. Request to join, and together, we can address a great challenge for humanity: understanding and enabling life to thrive in deep space!
Want to learn more?
On April 17 at 3pm Eastern Time, the NASA Citizen Science Leaders Series is hosting an virtual event with Ryan Scott about these Analysis Working Groups and their work. Ryan is the Science Lead for the Ames Life Sciences Data Archive and the liaison between the Open Data Science Repository and the Analysis Working Groups. Click here to register for this event!
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Explore This Section Exoplanets Home Exoplanets Overview Exoplanets Facts Types of Exoplanets Stars What is the Universe Search for Life The Big Questions Are We Alone? Can We Find Life? The Habitable Zone Why We Search Target Star Catalog Discoveries Discoveries Dashboard How We Find and Characterize Missions People Exoplanet Catalog Immersive The Exoplaneteers Exoplanet Travel Bureau 5 Ways to Find a Planet Strange New Worlds Universe of Monsters Galaxy of Horrors News Stories Blog Resources Get Involved Glossary Eyes on Exoplanets Exoplanet Watch More Multimedia ExEP This artist’s concept pictures the planets orbiting Barnard’s Star, as seen from close to the surface of one of them. Image credit: International Gemini Observatory/NOIRLab/NSF/AURA/P. Marenfeld The Discovery
Four rocky planets much smaller than Earth orbit Barnard’s Star, the next closest to ours after the three-star Alpha Centauri system. Barnard’s is the nearest single star.
Key Facts
Barnard’s Star, six light-years away, is notorious among astronomers for a history of false planet detections. But with the help of high-precision technology, the latest discovery — a family of four — appears to be solidly confirmed. The tiny size of the planets is also remarkable: Capturing evidence of small worlds at great distance is a tall order, even using state-of-the-art instruments and observational techniques.
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Watching for wobbles in the light from a star is one of the leading methods for detecting exoplanets — planets orbiting other stars. This “radial velocity” technique tracks subtle shifts in the spectrum of starlight caused by the gravity of a planet pulling its star back and forth as the planet orbits. But tiny planets pose a major challenge: the smaller the planet, the smaller the pull. These four are each between about a fifth and a third as massive as Earth. Stars also are known to jitter and quake, creating background “noise” that potentially could swamp the comparatively quiet signals from smaller, orbiting worlds.
Astronomers measure the back-and-forth shifting of starlight in meters per second; in this case the radial velocity signals from all four planets amount to faint whispers — from 0.2 to 0.5 meters per second (a person walks at about 1 meter per second). But the noise from stellar activity is nearly 10 times larger at roughly 2 meters per second.
How to separate planet signals from stellar noise? The astronomers made detailed mathematical models of Barnard’s Star’s quakes and jitters, allowing them to recognize and remove those signals from the data collected from the star.
The new paper confirming the four tiny worlds — labeled b, c, d, and e — relies on data from MAROON-X, an “extreme precision” radial velocity instrument attached to the Gemini Telescope on the Maunakea mountaintop in Hawaii. It confirms the detection of the “b” planet, made with previous data from ESPRESSO, a radial velocity instrument attached to the Very Large Telescope in Chile. And the new work reveals three new sibling planets in the same system.
Fun Facts
These planets orbit their red-dwarf star much too closely to be habitable. The closest planet’s “year” lasts a little more than two days; for the farthest planet, it’s is just shy of seven days. That likely makes them too hot to support life. Yet their detection bodes well in the search for life beyond Earth. Scientists say small, rocky planets like ours are probably the best places to look for evidence of life as we know it. But so far they’ve been the most difficult to detect and characterize. High-precision radial velocity measurements, combined with more sharply focused techniques for extracting data, could open new windows into habitable, potentially life-bearing worlds.
Barnard’s star was discovered in 1916 by Edward Emerson Barnard, a pioneering astrophotographer.
The Discoverers
An international team of scientists led by Ritvik Basant of the University of Chicago published their paper on the discovery, “Four Sub-Earth Planets Orbiting Barnard’s Star from MAROON-X and ESPRESSO,” in the science journal, “The Astrophysical Journal Letters,” in March 2025. The planets were entered into the NASA Exoplanet Archive on March 13, 2025.
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Explore This Section Webb News Latest News Latest Images Blog (offsite) Awards X (offsite – login reqd) Instagram (offsite – login reqd) Facebook (offsite- login reqd) Youtube (offsite) Overview About Who is James Webb? Fact Sheet Impacts+Benefits FAQ Science Overview and Goals Early Universe Galaxies Over Time Star Lifecycle Other Worlds Observatory Overview Launch Deployment Orbit Mirrors Sunshield Instrument: NIRCam Instrument: MIRI Instrument: NIRSpec Instrument: FGS/NIRISS Optical Telescope Element Backplane Spacecraft Bus Instrument Module Multimedia About Webb Images Images Videos What is Webb Observing? 3d Webb in 3d Solar System Podcasts Webb Image Sonifications Team International Team People Of Webb More For the Media For Scientists For Educators For Fun/Learning 5 Min Read NASA’s Webb Images Young, Giant Exoplanets, Detects Carbon Dioxide
NASA’s James Webb Space Telescope has provided the clearest look in the infrared yet at the iconic multi-planet system HR 8799. Full image below. Credits:
NASA, ESA, CSA, STScI, W. Balmer (JHU), L. Pueyo (STScI), M. Perrin (STScI) NASA’s James Webb Space Telescope has captured direct images of multiple gas giant planets within an iconic planetary system. HR 8799, a young system 130 light-years away, has long been a key target for planet formation studies.
The observations indicate that the well-studied planets of HR 8799 are rich in carbon dioxide gas. This provides strong evidence that the system’s four giant planets formed much like Jupiter and Saturn, by slowly building solid cores that attract gas from within a protoplanetary disk, a process known as core accretion.
The results also confirm that Webb can infer the chemistry of exoplanet atmospheres through imaging. This technique complements Webb’s powerful spectroscopic instruments, which can resolve the atmospheric composition.
“By spotting these strong carbon dioxide features, we have shown there is a sizable fraction of heavier elements, like carbon, oxygen, and iron, in these planets’ atmospheres,” said William Balmer, of Johns Hopkins University in Baltimore. “Given what we know about the star they orbit, that likely indicates they formed via core accretion, which is an exciting conclusion for planets that we can directly see.”
Balmer is the lead author of the study announcing the results published today in The Astrophysical Journal. Balmer and their team’s analysis also includes Webb’s observation of a system 97 light-years away called 51 Eridani.
Image A: HR 8799 (NIRCam Image)
NASA’s James Webb Space Telescope has provided the clearest look in the infrared yet at the iconic multi-planet system HR 8799. The closest planet to the star, HR 8799 e, orbits 1.5 billion miles from its star, which in our solar system would be located between the orbit of Saturn and Neptune. The furthest, HR 8799 b, orbits around 6.3 billion miles from the star, more than twice Neptune’s orbital distance. Colors are applied to filters from Webb’s NIRCam (Near-Infrared Camera), revealing their intrinsic differences. A star symbol marks the location of the host star HR 8799, whose light has been blocked by the coronagraph. In this image, the color blue is assigned to 4.1 micron light, green to 4.3 micron light, and red to the 4.6 micron light. NASA, ESA, CSA, STScI, W. Balmer (JHU), L. Pueyo (STScI), M. Perrin (STScI) Image B: 51 Eridani (NIRCam Image)
Webb’s NIRCam (Near-Infrared Camera) captured this image of 51 Eridani b (also referred to as 51 Eri b), a cool, young exoplanet that orbits 890 million miles from its star, similar to Saturn’s orbit in our solar system. The 51 Eridani system is 97 light-years from Earth. This image includes filters representing 4.1-micron light as red. The background red in this image is not light from other planets, but a result of light subtraction during image processing. NASA, ESA, CSA, STScI, W. Balmer (JHU), L. Pueyo (STScI), M. Perrin (STScI) HR 8799 is a young system about 30 million years old, a fraction of our solar system’s 4.6 billion years. Still hot from their tumultuous formation, the planets within HR 8799 emit large amounts of infrared light that give scientists valuable data on how they formed.
Giant planets can take shape in two ways: by slowly building solid cores with heavier elements that attract gas, just like the giants in our solar system, or when particles of gas rapidly coalesce into massive objects from a young star’s cooling disk, which is made mostly of the same kind of material as the star. The first process is called core accretion, and the second is called disk instability. Knowing which formation model is more common can give scientists clues to distinguish between the types of planets they find in other systems.
“Our hope with this kind of research is to understand our own solar system, life, and ourselves in the comparison to other exoplanetary systems, so we can contextualize our existence,” Balmer said. “We want to take pictures of other solar systems and see how they’re similar or different when compared to ours. From there, we can try to get a sense of how weird our solar system really is—or how normal.”
Image C: Young Gas Giant HR 8799 e (NIRCam Spectrum)
This graph shows a spectrum of one of the planets in the HR 8799 system, HR 8799 e. Spectral fingerprints of carbon dioxide and carbon monoxide appear in data collected by Webb’s NIRCam (Near-Infrared Camera). NASA, ESA, CSA, STScI, J. Olmsted (STScI) Of the nearly 6,000 exoplanets discovered, few have been directly imaged, as even giant planets are many thousands of times fainter than their stars. The images of HR 8799 and 51 Eridani were made possible by Webb’s NIRCam (Near-Infrared Camera) coronagraph, which blocks light from bright stars to reveal otherwise hidden worlds.
This technology allowed the team to look for infrared light emitted by the planets in wavelengths that are absorbed by specific gases. The team found that the four HR 8799 planets contain more heavy elements than previously thought.
The team is paving the way for more detailed observations to determine whether objects they see orbiting other stars are truly giant planets or objects such as brown dwarfs, which form like stars but don’t accumulate enough mass to ignite nuclear fusion.
“We have other lines of evidence that hint at these four HR 8799 planets forming using this bottom-up approach” said Laurent Pueyo, an astronomer at the Space Telescope Science Institute in Baltimore, who co-led the work. “How common is this for planets we can directly image? We don’t know yet, but we’re proposing more Webb observations to answer that question.”
“We knew Webb could measure colors of the outer planets in directly imaged systems,” added Rémi Soummer, director of STScI’s Russell B. Makidon Optics Lab and former lead for Webb coronagraph operations. “We have been waiting for 10 years to confirm that our finely tuned operations of the telescope would also allow us to access the inner planets. Now the results are in and we can do interesting science with it.”
The NIRCam observations of HR 8799 and 51 Eridani were conducted as part of Guaranteed Time Observations programs 1194 and 1412 respectively.
The James Webb Space Telescope is the world’s premier space science observatory. Webb will solve mysteries in our solar system, look beyond to distant worlds around other stars, and probe the mysterious structures and origins of our universe and our place in it. Webb is an international program led by NASA with its partners, ESA (European Space Agency) and the Canadian Space Agency.
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Laura Betz – laura.e.betz@nasa.gov
NASA’s Goddard Space Flight Center, Greenbelt, Md.
Hannah Braun – hbraun@stsci.edu
Space Telescope Science Institute, Baltimore, Md.
Roberto Molar Candanosa
Johns Hopkins University, Baltimore, Md.
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Earth (ESD) Earth Explore Explore Earth Science Climate Change Air Quality Science in Action Multimedia Image Collections Videos Data For Researchers About Us 8 Min Read NASA Researchers Study Coastal Wetlands, Champions of Carbon Capture
Florida’s coastal wetlands are a complex patchwork of ecosystem — consisting of sawgrass marshland, hardwood hammocks, freshwater swamps, and mangrove forests. Credits:
NASA/ Nathan Marder Across the street from the Flamingo Visitor’s Center at the foot of Florida’s Everglades National Park, there was once a thriving mangrove population — part of the largest stand of mangroves in the Western Hemisphere. Now, the skeletal remains of the trees form one of the Everglades’ largest ghost forests.
When Hurricane Irma made landfall in September 2017 as a category 4 storm, violent winds battered the shore and a storm surge swept across the coast, decimating large swaths of mangrove forest. Seven years later, most of the mangroves here haven’t seen any new growth. “At this point, I doubt they’ll recover,” said David Lagomasino, a professor of coastal studies at East Carolina University.
Lagomasino was in the Everglades conducting fieldwork as part of NASA’s BlueFlux Campaign, a three-year project that aims to study how sub-tropical wetlands influence atmospheric levels of carbon dioxide (CO2) and methane. Both gases absorb solar radiation and have a warming effect on Earth’s atmosphere.
A mangrove “ghost forest” near Florida’s southernmost coast houses the remains of a once-thriving mangrove stand. NASA/Nathan Marder The campaign is led by Ben Poulter, a researcher at NASA’s Goddard Space Flight Center in Greenbelt, Maryland, who studies the way human activity and climate change affect the carbon cycle. As wetland vegetation responds to increasing temperatures, rising sea levels, and severe weather, Poulter’s team is trying to determine how much carbon dioxide wetland vegetation removes from the atmosphere and how much methane it produces. Ultimately this research will help scientists develop models to estimate and monitor greenhouse gas concentrations in coastal areas around the globe.
Although coastal wetlands account for less than 2% of the planet’s land-surface area, they remove a significant amount of carbon dioxide from the atmosphere. Florida’s coastal wetlands alone remove an estimated 31.8 million metric tons each year. A commercial aircraft would have to circle the globe more than 26,000 times to produce the same amount of carbon dioxide. Coastal wetlands also store carbon in marine sediments, keeping it underground — and out of the atmosphere — for thousands of years. This carbon storage capacity of oceans and wetlands is so robust that it has its own name: blue carbon.
“We’re worried about losing that stored carbon,” Poulter said. “But blue carbon also offers tremendous opportunities for climate mitigation if conservation and restoration are properly supported by science.”
The one-meter core samples collected by Lagomasino will be used to identify historic rates of blue carbon development in mangrove forests and to evaluate how rates of carbon storage respond to specific environmental pressures, like sea level rise or the increasing frequency of tropical cyclones.
Early findings from space-based flux data confirm that, in addition to acting as a sink of carbon dioxide, tropical wetlands are a significant source of methane — a greenhouse gas that traps heat roughly 80 times more efficiently than carbon dioxide. In fact, researchers estimate that Florida’s entire wetland expanse produces enough methane to offset the benefits of wetland carbon removal by about 5%.
Everglades peat contains history of captured carbon
During his most recent fieldwork deployment, Lagomasino used a small skiff to taxi from one research site to the next; many parts of the Everglades are virtually unreachable on foot. At each site, he opened a broad, black case and removed a metallic peat auger, which resembles a giant letter opener. The instrument is designed to extract core samples from soft soils. Everglades peat — which is composed almost entirely of the carbon-rich, partially decomposed roots, stems, and leaves of mangroves — offers a perfect study subject.
Lagomasino plunged the auger into the soil, using his body weight to push the instrument into the ground. Once the sample was secured, he freed the tool from the Earth, presenting a half-cylinder of soil. Each sample was sealed and shipped back to the lab — where they are sliced horizontally into flat discs and analyzed for their age and carbon content.
East Carolina University professor of coastal studies David Lagomasino (right) and his doctoral student Daystar Babanawo explore the Everglades by boat. The plant life here consists almost entirely of mangroves, which can withstand the saltwater tides that characterize coastal wetlands. Scientific studies of Florida’s coastal ecosystems have historically been limited by the relative inaccessibility of the region. NASA/Nathan Marder Everglades peat forms quickly. In Florida’s mangrove forests, around 2 to 10 millimeters of soil are added to the forest floor each year, building up over time like sand filling an hourglass. Much like an ice core, sediment cores offer a window into Earth’s past. The deeper the core, the further into the past one can see. By looking closely at the contents of the soil, researchers can uncover information about the climate conditions from the time the soil formed.
In some parts of the Everglades, soil deposits can reach depths of up to 3 meters (10 feet), where one meter might represent close to 100 years of peat accumulation, Lagomasino said. Deep in the Amazon rainforest, by comparison, a similarly sized, one-meter deposit could take more than 1,000 years to develop. This is important in the context of restoration efforts: in coastal wetlands, peat losses can be restored up to 10 times faster than they might be in other forest types.
Lagomasino holds a sample of peat soil collected from the forest floor. The source of the soil’s elevated carbon content — evident from its coarse, fibrous texture — is primarily the thread-like root hairs routinely recycled by the surrounding mangroves. The presence of water slows the decomposition of this organic material, which is why wetlands can lock carbon away and prevent it from escaping into the atmosphere for thousands of years. NASA/Nathan Marder “There are also significant differences in fluxes between healthy mangroves and degraded ones,” said Lola Fatoyinbo, a research scientist in the Biospheric Sciences Laboratory at NASA’s Goddard Space Flight Center. In areas where mangrove forests are suffering, for example, after a major hurricane, “you end up with more greenhouse gases in the atmosphere,” she said. As wetland ecology responds to intensifying natural and human pressures, the data product will help researchers precisely monitor the impact of ecological changes on global carbon dioxide and methane levels.
Wetland methane: A naturally occurring but potent greenhouse gas
Methane is naturally produced by microbes that live in wetland soils. But as wetland conditions change, the growth rate of methane-producing microbes can spike, releasing the gas into the atmosphere at prodigious rates.
Since methane is a significantly more potent greenhouse gas than carbon dioxide, possessing a warming potential 84 times greater over a 25-year period, methane emissions undermine some of the beneficial services that blue carbon ecosystems provide as natural sinks for atmospheric carbon dioxide.
While Lagomasino studied the soil to understand long-term storage of greenhouse gases, Lola Fatoyinbo, a research scientist in NASA’s Biospheric Sciences Lab, and Peter Raymond, an ecologist at Yale University’s School of the Environment, measured the rate at which these gases are exchanged between wetland vegetation and the atmosphere. This metric is known as gaseous flux.
Lagomasino holds a sample of peat soil collected from the forest floor. The presence of water slows the decomposition of this organic material, which is why wetlands can lock carbon away and prevent it from escaping into the atmosphere for thousands of years. NASA/Nathan Marder NASA/Nathan Marder The scientists measure flux using chambers designed to adhere neatly to points where significant rates of gas exchange occur. They secure box-like chambers to above-ground roots and branches while domed chambers measure gas escaping from the forest floor. The concentration of gases trapped in each chamber is measured over time.
In general, as the health of wetland ecology declines, less carbon dioxide is removed, and more methane is released. But the exact nature of the relationship between wetland health and gaseous flux is not well understood. What does flux look like in ghost forests, for example? And how do more subtle changes in variables like canopy coverage or species distribution influence levels of carbon dioxide sequestration or methane production?
“We’re especially interested in the methane part,” Fatoyinbo said. “It’s the least understood, and there’s a lot more of it than we previously thought.”
Based on data collected during BlueFlux fieldwork, “we’re finding that coastal wetlands remove massive amounts of carbon dioxide and produce substantial amounts of methane,” Poulter said. “But overall, these ecosystems appear to provide a net climate benefit, removing more greenhouse gases than they produce.” That could change as Florida’s wetlands respond to continued climate disturbances.
The future of South Florida’s ecology
Florida’s wetlands are roughly 5,000 years old. But in just the past century, more than half of the state’s original wetland coverage has been lost as vegetation was cleared and water was drained to accommodate the growing population. The Everglades system now contains 65% less peat and 77% less stored carbon than it did prior to drainage. The future of the ecosystem — which is not only an important reservoir for atmospheric carbon, but a source of drinking water for more than 7 million Floridians and a home to flora and fauna found nowhere else on Earth — is uncertain.
Scientists who have dedicated their careers to understanding and restoring South Florida’s ecology are hopeful. “Nature and people can coexist,” said Meenakshi Chabba, an ecologist and resilience scientist at the Everglades Foundation in Florida’s Miami-Dade County. “But we need good science and good management to reach that goal.”
The next step for NASA’s BlueFlux campaign is the development of a satellite-based data product that can help regional stakeholders evaluate in real-time how Florida’s wetlands are responding to restoration efforts designed to protect one of the state’s most precious natural resources — and all those who depend on it.
By Nathan Marder
NASA’s Goddard Space Flight Center, Greenbelt, Maryland
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Last Updated Mar 13, 2025 Editor Jenny Marder Contact Nathan Marder Related Terms
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Explore This Section Science Science Activation Sharing PLANETS Curriculum… Overview Learning Resources Science Activation Teams SME Map Opportunities More Science Activation Stories Citizen Science 2 min read
Sharing PLANETS Curriculum with Out-of-School Time Educators
Out of school time (OST) educators work with youth in afterschool, community, and camp programs. Science, Technology, Engineering, and Mathematics (STEM) learning in OST can be challenging for multiple reasons, including lack of materials and support for educators. The NASA Science Activation program’s PLANETS project – Planetary Learning that Advances the Nexus of Engineering, Technology, and Science – led by Northern Arizona University in Flagstaff, AZ, provides both written curriculum and virtual educator support on planetary science and engineering.
PLANETS offers three curriculum units focused on themes from NASA’s strategic priorities and mission directives in planetary science over the next decade:
Space Hazards for learners in grades 3-5, Water in Extreme Environments, and Remote Sensing for learners in grades 6-8. PLANETS recently exhibited at two national conferences for educators to share these free NASA partner resources: the Space Exploration Educators Conference at Space Center Houston in Houston, TX on Feb 6-8, 2025 and the Beyond School Hours conference in Orlando, FL on Feb 13-16, 2025. Approximately 500 educators interacted with PLANETS team members to learn about the curriculum and to share their needs for OST learners. Some educators shared how they are already using PLANETS and how much their learners enjoy the lessons. In addition to sharing PLANETS resources, the team also had QR codes and flyers providing information about all the other Science Activation project teams, making sure educators grow in awareness of all that NASA’s Science Mission Directorate does to engage the public.
OST educators appreciate the integrity and quality of NASA-funded resources. One educator shared, “Free resources are always critical to youth-serving organizations. PLANETS also has everyday materials and educator dialogue on how to deliver, making it easy to pick up and use.”
Another OST educator said, “There are programs out there, like PLANETS, that truly help people of all backgrounds,” and yet another expressed, “I love the activities, and could see our youth engaging with it in a fun way.” Disseminating these types of NASA Science Activation program resources at regional and national venues is vital.
The PLANETS project is supported by NASA under cooperative agreement award number NNX16AC53A and is part of NASA’s Science Activation Portfolio. Learn more about how Science Activation connects NASA science experts, real content, and experiences with community leaders to do science in ways that activate minds and promote deeper understanding of our world and beyond: https://science.nasa.gov/learn
Members of the PLANETS team exhibiting at the Space Exploration Educators Conference in Houston, TX. Share
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