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By NASA
This image from NASA’s James Webb Space Telescope shows the dwarf galaxy NGC 4449. ESA/Webb, NASA & CSA, A. Adamo (Stockholm University) and the FEAST JWST team President Biden has named 19 researchers who contribute to NASA’s mission as recipients of the Presidential Early Career Award for Scientists and Engineers (PECASE). These recipients are among nearly 400 federally funded researchers receiving the honor.
Established in 1996 by the National Science and Technology Council, the PECASE Award is the highest honor given by the U.S. government to scientists and engineers who are beginning their research careers. The award recognizes recipients’ potential to advance the frontiers of scientific knowledge and their commitment to community service, as demonstrated through professional leadership, education or community outreach.
“I am so impressed with these winners and what they have accomplished,” said Kate Calvin, chief scientist, NASA Headquarters in Washington. “They have made valuable contributions to NASA science and engineering, and I can’t wait to see what they do in the future.”
The following NASA recipients were nominated by the agency:
Natasha Batalha, NASA Ames Research Center, Silicon Valley, California – for transformational scientific research in the development of open-source systems for the modeling of exoplanet atmospheres and observations Elizabeth Blaber, Rensselaer Polytechnic Institute, Troy, New York – for transformative spaceflight and ground-based space biology research James Burns, University of Virginia, Charlottesville – for innovative research at the intersection of metallurgy, solid mechanics and chemistry Egle Cekanaviciute, NASA Ames Research Center – for producing transformational research to enable long-duration human exploration on the Moon and Mars Nacer Chahat, NASA Jet Propulsion Laboratory, Pasadena, California – for leading the innovation of spacecraft antennas that enable NASA deep space and earth science missions Ellyn Enderlin, Boise State University, Idaho – for innovative methods to study glaciers using a wide variety of satellite datasets David Estrada, Boise State University, Idaho – for innovative research in the areas of printed electronics for in space manufacturing and sensors for harsh environments Burcu Gurkan, Case Western Reserve University, Cleveland, Ohio – for transforming contemporary approaches to energy storage and carbon capture to be safer and more economical, for applications in space and on Earth Elliott Hawkes, University of California, Santa Barbara – for highly creative innovations in bio-inspired robotics that advance science and support NASA’s mission John Hwang, University of California, San Diego – for innovative approach to air taxi design and key contributions to the urban air mobility industry James Tuttle Keane, NASA Jet Propulsion Laboratory – for innovative and groundbreaking planetary geophysics research, and renowned planetary science illustrations Kaitlin Kratter, University of Arizona, Tucson – for leadership in research about the formation and evolution of stellar and planetary systems beyond our own Lyndsey McMillon-Brown, NASA Glenn Research Center, Cleveland, Ohio – for leadership in photovoltaic research, development, and demonstrations Debbie Senesky, Stanford University, California – for research that has made it possible to operate sensing and electronic devices in high-temperature and radiation-rich environments Hélène Seroussi, Dartmouth College, Hanover, New Hampshire – for leading the cryosphere science community in new research directions about the role of ocean circulation in the destabilization of major parts of Antarctica’s ice sheets Timothy Smith, NASA Glenn Research Center – for achievements in materials science research, specifically in high temperature alloy innovation Mitchell Spearrin, University of California, Los Angeles – for pioneering scientific and technological advancements in multiple areas critical to NASA’s current and future space missions including rocket propulsion, planetary entry, and sensor systems Michelle Thompson, Purdue University, West Lafayette, Indiana – for research in planetary science and dedication to training the next generation of STEM leaders Mary Beth Wilhelm, NASA Ames Research Center – for achievements in science, technology, and community outreach through her work in the fields of space science and astrobiology The PECASE awards were created to highlight the importance of science and technology for America’s future. These early career awards foster innovative developments in science and technology, increase awareness of careers in science and engineering, provide recognition to the scientific missions of participating agencies, and enhance connections between research and challenges facing the nation. For a complete list of award winners, visit:
https://www.whitehouse.gov/ostp/news-updates/2025/01/14/president-biden-honors-nearly-400-federally-funded-early-career-scientists
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By NASA
3 Min Read NASA Scientists Find New Human-Caused Shifts in Global Water Cycle
Cracked mud and salt on the valley floor in Death Valley National Park in California can become a reflective pool after rains. (File photo) Credits: NPS/Kurt Moses In a recently published paper, NASA scientists use nearly 20 years of observations to show that the global water cycle is shifting in unprecedented ways. The majority of those shifts are driven by activities such as agriculture and could have impacts on ecosystems and water management, especially in certain regions.
“We established with data assimilation that human intervention in the global water cycle is more significant than we thought,” said Sujay Kumar, a research scientist at NASA’s Goddard Space Flight Center in Greenbelt, Maryland, and a co-author of the paper published in the Proceedings of the National Academy of Sciences.
The shifts have implications for people all over the world. Water management practices, such as designing infrastructure for floods or developing drought indicators for early warning systems, are often based on assumptions that the water cycle fluctuates only within a certain range, said Wanshu Nie, a research scientist at NASA Goddard and lead author of the paper.
“This may no longer hold true for some regions,” Nie said. “We hope that this research will serve as a guide map for improving how we assess water resources variability and plan for sustainable resource management, especially in areas where these changes are most significant.”
One example of the human impacts on the water cycle is in North China, which is experiencing an ongoing drought. But vegetation in many areas continues to thrive, partially because producers continue to irrigate their land by pumping more water from groundwater storage, Kumar said. Such interrelated human interventions often lead to complex effects on other water cycle variables, such as evapotranspiration and runoff.
Nie and her colleagues focused on three different kinds of shifts or changes in the cycle: first, a trend, such as a decrease in water in a groundwater reservoir; second, a shift in seasonality, like the typical growing season starting earlier in the year, or an earlier snowmelt; and third a change in extreme events, like “100-year floods” happening more frequently.
The scientists gathered remote sensing data from 2003 to 2020 from several different NASA satellite sources: the Global Precipitation Measurement mission satellite for precipitation data, a soil moisture dataset from the European Space Agency’s Climate Change Initiative, and the Gravity Recovery and Climate Experiment satellites for terrestrial water storage data. They also used products from the Moderate Resolution Imaging Spectroradiometer satellite instrument to provide information on vegetation health.
“This paper combines several years of our team’s effort in developing capabilities on satellite data analysis, allowing us to precisely simulate continental water fluxes and storages across the planet,” said Augusto Getirana, a research scientist at NASA Goddard and a co-author of the paper.
The study results suggest that Earth system models used to simulate the future global water cycle should evolve to integrate the ongoing effects of human activities. With more data and improved models, producers and water resource managers could understand and effectively plan for what the “new normal” of their local water situation looks like, Nie said.
By Erica McNamee
NASA’s Goddard Space Flight Center, Greenbelt, Maryland
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Last Updated Jan 16, 2025 EditorKate D. RamsayerContactKate D. Ramsayerkate.d.ramsayer@nasa.gov Related Terms
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By NASA
5 Min Read Scientists Share Early Results from NASA’s Solar Eclipse Experiments
On April 8, 2024, a total solar eclipse swept across a narrow portion of the North American continent from Mexico’s Pacific coast to the Atlantic coast of Newfoundland, Canada. This photo was taken from Dallas, Texas. Credits:
NASA/Keegan Barber On April 8, 2024, a total solar eclipse swept across North America, from the western shores of Mexico, through the United States, and into northeastern Canada. For the eclipse, NASA helped fund numerous research projects and called upon citizen scientists in support of NASA’s goal to understand how our home planet is affected by the Sun – including, for example, how our star interacts with Earth’s atmosphere and affects radio communications.
At a press briefing on Tuesday, Dec. 10, scientists attending the annual meeting of the American Geophysical Union in Washington, D.C., reported some early results from a few of these eclipse experiments.
“Scientists and tens of thousands of volunteer observers were stationed throughout the Moon’s shadow,” said Kelly Korreck, eclipse program manager at NASA Headquarters in Washington. “Their efforts were a crucial part of the Heliophysics Big Year – helping us to learn more about the Sun and how it affects Earth’s atmosphere when our star’s light temporarily disappears from view.”
Changes in the Corona
On April 8, the Citizen CATE 2024 (Continental-America Telescopic Eclipse) project stationed 35 observing teams from local communities from Texas to Maine to capture images of the Sun’s outer atmosphere, or corona, during totality. Their goal is to see how the corona changed as totality swept across the continent.
On Dec. 10, Sarah Kovac, the CATE project manager at the Southwest Research Institute in Boulder, Colorado, reported that, while a few teams were stymied by clouds, most observed totality successfully — collecting over 47,000 images in all.
These images were taken in polarized light, or light oriented in different directions, to help scientists better understand the processes that shape the corona.
This preliminary movie from the Citizen CATE 2024 project stitches together polarized images of the solar corona taken from different sites during the total solar eclipse on April 8, 2024. SwRI/Citizen CATE 2024/Dan Seaton/Derek Lamb Kovac shared the first cut of a movie created from these images. The project is still stitching together all the images into the final, hour-long movie, for release at a later time.
“The beauty of CATE 2024 is that we blend cutting-edge professional science with community participants from all walks of life,” Kovac said. “The dedication of every participant made this project possible.”
Meanwhile, 50,000 feet above the ground, two NASA WB-57 aircraft chased the eclipse shadow as it raced across the continent, observing above the clouds and extending their time in totality to approximately 6 minutes and 20 seconds.
On board were cameras and spectrometers (instruments that analyze different wavelengths of light) built by multiple research teams to study the corona.
This image of the total solar eclipse is a combination of 30 50-millisecond exposures taken with a camera mounted on one of NASA’s WB-57 aircraft on April 8, 2024. It was captured in a wavelength of light emitted by ionized iron atoms called Fe XIV. This emission highlights electrified gas, called plasma, at a specific temperature (around 3.2 million degrees Fahrenheit) that often reveals arch-like structures in the corona. B. Justen, O. Mayer, M. Justen, S. Habbal, and M. Druckmuller On Dec. 10, Shadia Habbal of the University of Hawaii, who led one of the teams, reported that their instruments collected valuable data, despite one challenge. Cameras they had mounted on the aircraft’s wings experienced unexpected vibrations, which caused some of the images to be slightly blurred.
However, all the cameras captured detailed images of the corona, and the spectrometers, which were located in the nose of the aircraft, were not affected. The results were so successful, scientists are already planning to fly similar experiments on the aircraft again.
“The WB-57 is a remarkable platform for eclipse observations that we will try to capitalize on for future eclipses,” Habbal said.
Affecting the Atmosphere
On April 8, amateur or “ham” radio operators sent and received signals to one another before, during, and after the eclipse as part of the Ham Radio Science Citizen Investigation (HamSCI) Festivals of Eclipse Ionospheric Science. More than 6,350 amateur radio operators generated over 52 million data points to observe how the sudden loss of sunlight during totality affects their radio signals and the ionosphere, an electrified region of Earth’s upper atmosphere.
Students from Case Western Reserve University operate radios during the 2024 total solar eclipse. HamSCI/Case Western Reserve University Radio communications inside and outside the path of totality improved at some frequencies (from 1-7 MHz), showing there was a reduction in ionospheric absorption. At higher frequencies (10 MHz and above), communications worsened.
Results using another technique, which bounced high-frequency radio waves (3-30 MHz) off the ionosphere, suggests that the ionosphere ascended in altitude during the eclipse and then descended to its normal height afterward.
“The project brings ham radio operators into the science community,” said Nathaniel Frissell, a professor at the University of Scranton in Pennsylvania and lead of HamSCI. “Their dedication to their craft made this research possible.”
Also looking at the atmosphere, the Nationwide Eclipse Ballooning Project organized student groups across the U.S. to launch balloons into the shadow of the Moon as it crossed the country in April 2024 and during a solar eclipse in October 2023. Teams flew weather sensors and other instruments to study the atmospheric response to the cold, dark shadow.
The eclipse’s shadow was captured from a camera aboard Virginia Tech’s balloon as part of the Nationwide Eclipse Ballooning Project on April 8, 2024. Nationwide Eclipse Ballooning Project/Virginia Tech This research, conducted by over 800 students, confirmed that eclipses can generate ripples in Earth’s atmosphere called atmospheric gravity waves. Just as waves form in a lake when water is disturbed, these waves also form in the atmosphere when air is disturbed. This project, led by Angela Des Jardins of Montana State University in Bozeman, also confirmed the presence of these waves during previous solar eclipses. Scientists think the trigger for these waves is a “hiccup” in the tropopause, a layer in Earth’s atmosphere, similar to an atmospheric effect that is observed during sunset.
“Half of the teams had little to no experience ballooning before the project,” said Jie Gong, a team science expert and atmospheric scientist at NASA’s Goddard Space Flight Center in Greenbelt, Maryland. “But their hard work and research was vital in this finding.”
By Abbey Interrante and Vanessa Thomas
NASA’s Goddard Space Flight Center, Greenbelt, Md.
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Last Updated Dec 10, 2024 Related Terms
2024 Solar Eclipse Citizen Science Goddard Space Flight Center Heliophysics Solar Eclipses The Sun Uncategorized Explore More
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By NASA
The Thanksgiving holiday typically brings families and friends together in a celebration of common gratitude for all the good things that have happened during the previous year. People celebrate the holiday in various ways, with parades, football marathons, and attending services, but food remains the over-arching theme. For astronauts embarked on long-duration space missions, separation from family and friends is inevitable and they rely on fellow crew members to share in the tradition and enjoy the culinary traditions as much as possible.
Over the past decades, astronauts have celebrated the holiday during their time in space in a variety of unique ways. Enjoy the stories and photographs from orbital Thanksgiving celebrations over the years.
Skylab 4 astronauts Edward G. Gibson, left, William R. Pogue, and Gerald P. Carr demonstrate eating aboard Skylab during Thanksgiving in 1973. NASA Skylab 4 astronauts Gerald P. Carr, Edward G. Gibson, and William R. Pogue hold the distinction as the first crew to celebrate Thanksgiving in space on Nov. 22, 1973. On that day, their seventh of an 84-day mission, Gibson and Pogue completed a 6-hour and 33-minute spacewalk, while Carr remained in the Multiple Docking Adapter, with no access to food. All three made up for missing lunch by consuming two meals at dinner time, although neither included special items for Thanksgiving.
Twelve years passed before the next orbital Thanksgiving celebration. On Nov. 28, 1985, the seven-member crew of STS-61B, NASA astronauts Brewster H. Shaw, Bryan D. O’Connor, Jerry L. Ross, Mary L. Cleave, and Sherwood C. “Woody” Spring, and payload specialists Charles D. Walker from the United States and Rodolfo Neri Vela from Mexico, feasted on shrimp cocktail, irradiated turkey, and cranberry sauce aboard the space shuttle Atlantis.
STS-80 astronauts Tamara E. Jernigan, left, Kent V. Rominger, and Thomas D. Jones enjoy Thanksgiving dinner in Columbia’s middeck in 1996.NASA Neri Vela introduced tortillas to space menus, and they have remained favorites among astronauts ever since. Unlike regular bread, tortillas do not create crumbs, a potential hazard in weightlessness, and have multiple uses for any meal of the day. The crew of STS-33, NASA astronauts Frederick D. Gregory, John E. Blaha, Manley L. “Sonny” Carter, F. Story Musgrave, and Kathryn C. Thornton, celebrated Thanksgiving aboard space shuttle Discovery in 1989. Gregory and Musgrave celebrated their second Thanksgiving in space two years later, joined by fellow STS-44 NASA astronauts Terrence T. “Tom” Henricks, James S. Voss, Mario Runco, and Thomas J. Hennen aboard space shuttle Atlantis.
In 1996, Blaha celebrated his second Thanksgiving in space with Russian cosmonauts Valeri G. Korzun and Aleksandr Y. Kaleri aboard the space station Mir. Blaha watched the beautiful Earth through the Mir windows rather than his usual viewing fare of football. The STS-80 crew of NASA astronauts Kenneth D. Cockrell, Kent V. Rominger, Tamara E. Jernigan, Thomas D. Jones, and Musgrave, now on his third turkey day holiday in orbit, celebrated Thanksgiving aboard space shuttle Columbia. Although the eight crew members worked in different spacecraft in different orbits, they exchanged holiday greetings via space-to-space radio. This marked the largest number of people in space on Thanksgiving Day up to that time.
One year later, NASA astronaut David A. Wolf celebrated Thanksgiving with his Russian crewmates Anatoli Y. Solovev, who translated the holiday into Russian as den blagodarenia, and Pavel V. Vinogradov aboard Mir. They enjoyed smoked turkey, freeze-dried mashed potatoes, peas, and milk. Also in orbit at the time was the crew of STS-87, NASA astronauts Kevin R. Kregel, Steven W. Lindsey, Kalpana Chawla, and Winston E. Scott, Takao Doi of the Japan Aerospace Exploration Agency, and Leonid K. Kadenyuk of Ukraine, aboard Columbia. The nine crew members aboard the two spacecraft broke the one-year-old record for the largest number of people in space at one time for Thanksgiving, also setting the record for the most nations represented, four.
NASA astronaut Frank L. Culbertson, left, and Vladimir N. Dezhurov of Roscosmos enjoy Thanksgiving dinner aboard the International Space Station in 2001.NASA The Expedition 1 crew of NASA astronaut William M. Shepherd, and Yuri P. Gidzenko and Sergei K. Krikalev of Roscosmos celebrated the first Thanksgiving aboard the International Space Station on Nov. 23, 2000, three weeks after their arrival aboard the facility. The crew took time out of their busy schedule to enjoy ham and smoked turkey and send words of thanks to people on the ground who provided excellent support to their flight. Crews have celebrated Thanksgiving in space every November since then.
In 2001, Expedition 3 crew members NASA astronaut Frank L. Culbertson, and Vladimir N. Dezhurov and Mikhail V. Tyurin of Roscosmos enjoyed the first real Thanksgiving aboard the space station, complete with a cardboard turkey as decoration. The following year’s orbital Thanksgiving celebration included the largest number of people to that time, the combined 10 crewmembers of Expedition 5, STS-113, and Expedition 6. After a busy day that included the first Thanksgiving Day spacewalk from the space station, the crews settled down to a dinner of smoked turkey, mashed potatoes, and green beans with mushrooms. Blueberry-cherry cobbler rounded out the meal.
The crews of Expeditions 18 and STS-126 share a Thanksgiving meal in the space shuttle middeck in 2008. NASA Expedition 18 crew members NASA astronauts E. Michael Fincke and Gregory E. Chamitoff and Yuri V. Lonchakov representing Roscosmos, welcomed the STS-126 crew of NASA astronauts Christopher J. Ferguson, Eric A. Boe, Heidemarie M. Stefanyshyn-Piper, Donald R. Pettit, Stephen G. Bowen, R. Shane Kimbrough, and Sandra H. Magnus during Thanksgiving in 2008. They dined in the space shuttle Endeavour’s middeck on smoked turkey, candied yams, green beans and mushrooms, cornbread dressing and a cranapple dessert.
The following year saw the largest and an internationally diverse group celebrating Thanksgiving in space. The six Expedition 21 crew members, NASA astronauts Jeffrey N. Williams and Nicole P. Stott, Roman Y. Romanenko and Maksim V. Suraev of Roscosmos, Frank L. DeWinne of the European Space Agency, and Robert B. Thirsk of the Canadian Space Agency hosted the six members of the STS-129 crew, NASA astronauts Charles O. Hobaugh, Barry E. Wilmore, Michael J. Foreman, Robert L. Satcher, Randolph J. Bresnik, and Leland D. Melvin. The twelve assembled crew members represented the United States, Russia, Belgium, and Canada. The celebration took place two days early, since the shuttle undocked from the space station on Thanksgiving Day.
We hope you enjoyed these stories and photographs from Thanksgivings celebrated in space. We would like to wish everyone here on the ground and the seven-member crew of Expedition 72 aboard the space station a very Happy Thanksgiving! For NASA astronauts Barry “Butch” E. Wilmore and Donald R. Pettit, this will mark the third time they celebrate the holiday in space.
Expedition 42 crew members enjoy Thanksgiving dinner aboard the space station in 2014.NASA Expedition 45 crew members gather at the Thanksgiving dinner table aboard the orbital outpost in 2015. NASA Expedition 50 crew members at the Thanksgiving dinner table aboard the orbiting laboratory in 2016. NASA The Expedition 53 crew awaits the start of Thanksgiving dinner aboard the space station in 2017.NASA Expedition 66 crew members enjoy a Thanksgiving feast in 2021.NASA Expedition 70 crew members Andreas E. Mogensen, of the European Space Agency, front left, NASA astronauts Loral A. O’Hara and Jasmin Moghbeli, and Satoshi Furukawa of the Japan Aerospace Exploration Agency beam down their Thanksgiving message to everyone on the ground in 2023. The astronauts presented their favorite Thanksgiving space food items.NASA View the full article
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