Cardiovascular Research Continues Before Crew Departure, Next Cargo Mission

Cardiovascular Research Continues Before Crew Departure, Next Cargo Mission

The boot of Italy well-defined by the nation's city lights stands in contrast to the Tyrrhenian Sea (left) and the Adriatic Sea (right) with the Balkans at far right underneath an atmospheric glow blanketing Earth's horizon. The International Space Station was orbiting 262 miles above southern Europe at 10:57 p.m. local time when this photograph was taken.
The boot of Italy well-defined by the nation’s city lights stands in contrast to the Tyrrhenian Sea (left) and the Adriatic Sea (right) with the Balkans at far right underneath an atmospheric glow blanketing Earth’s horizon.
NASA

Preventing space-caused head and eye pressure and observing how blood flows in weightlessness were the top research objectives aboard the International Space Station on Thursday. The Expedition 72 crew is also preparing to split up while getting ready for the next U.S. cargo mission this month.

Doctors are testing a specialized thigh cuff for its ability to reduce blood flow toward an astronaut’s upper body caused by microgravity. Nichole Ayers of NASA assisted Takuya Onishi of JAXA (Japan Aerospace Exploration Agency) while he wore a pair of the thigh cuffs on his left and right legs. Ayers then scanned Onishi’s legs with the Ultrasound 2 device and collected blood pressure measurements to determine the effectiveness of the thigh cuffs. She also checked his eyes using medical imaging hardware to detect potential eye structure changes, a possible symptom of living in space. Knowledge gained from the biomedical study could protect crews on long duration missions to the Moon, Mars, and beyond.

Roscosmos Flight Engineers Sergey Ryzhikov and Alexey Zubritsky participated in another circulatory system study that observes how blood flows from the head to the limbs and back again in weightlessness. The two cosmonauts, who just arrived at the orbital outpost on Tuesday, took turns wearing sensors on their forehead, fingers, and toes revealing how blood circulation adapts to microgravity. Doctors will use the data to monitor crew health and provide countermeasures to the effects of living and working in weightlessness. Ryzhikov and Zubritsky also continued unpacking cargo stowed aboard the Soyuz MS-27 spacecraft that launched the duo, along with NASA Flight Engineer Jonny Kim, to the station.

NASA Flight Engineer Don Pettit joined station Commander Alexey Ovchinin and Flight Engineer Ivan Vagner, both from Roscosmos, and checked their Sokol launch and entry suits for leaks. The trio wore the suits when they launched together aboard the Soyuz MS-26 crew ship and docked to the Rassvet module on Sept. 11, 2024. They will wear the suits again when they return to Earth on April 19 inside the Soyuz MS-26 completing a seven-month space research mission.

The next cargo mission from SpaceX is due to launch later this month replenishing Expedition 72 with new science experiments and crew supplies. Pettit and Kim worked together preparing for the Dragon spacecraft’s arrival gathering items for stowage aboard Dragon when it returns to Earth about four weeks later. Pettit also assisted Kim, who is in his third day aboard the orbital lab, as he worked out on the advanced resistive exercise device for the first time. NASA Flight Engineer Anne McClain spent her day in the Quest airlock cleaning life support components and swapping hardware on a pair of spacesuits. Working in the orbiting lab’s Roscosmos segment, Roscosmos Flight Engineer Kirill Peskov serviced plumbing gear and an oxygen generator throughout his shift on Thursday.

Learn more about station activities by following the space station blog, @space_station and @ISS_Research on X, as well as the ISS Facebook and ISS Instagram accounts.

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Mark A. Garcia

GLOBE, NASA, and the Monsignor McClancy Memorial High School in Queens, New York

GLOBE, NASA, and the Monsignor McClancy Memorial High School in Queens, New York

4 min read

GLOBE, NASA, and the Monsignor McClancy Memorial High School in Queens, New York

When students actively participate in scientific investigations that connect to their everyday lives, something powerful happens: they begin to see themselves as scientists. This sense of relevance and ownership can spark a lifelong interest in science, technology, engineering, and math (STEM), paving the way for continued education and even future careers in these fields. Opportunities to engage directly with NASA science—like the one you’ll read about in this story—not only deepen students’ understanding of STEM concepts, but also nourish their curiosity and confidence. With the support of passionate educators, these moments of participation become stepping stones to a future in which students see themselves as contributors to real-world science.

In September 2021, Ms. Deanna Danke, a Monsignor McClancy Memorial High School mathematics teacher in Queens, New York, began teaching her students how to measure tree heights using trigonometry. Soon enough, Ms. Danke discovered the Global Learning and Observations to Benefit the Environment (GLOBE) Observer Trees Tool, and with her 150+ students, began taking tree height observations around the school, an activity that Ms. Danke and her students continue to participate in today. Her and her students’ hundreds of repeat tree height observations have provided student and professional researchers with clusters of measurements that can coincide with measurements made by NASA satellite instruments, allowing for a comparison of datasets that can be analyzed over time.

Due to the consistent tree height data collection resulting from this effort, Ms. Danke was asked to be a co-author on a peer-reviewed research paper that was published on June 21, 2022 in the Environmental Research Letters special journal “Focus on Public Participation in Environmental Research.” The paper, “The potential of citizen science data to complement satellite and airborne lidar tree height measurements: lessons from The GLOBE Program,” included data from the tree height observations reported by Ms. Danke and her students—an incredible achievement for everyone involved.

On March 21, 2025, Ms. Danke’s former and current students continued their inspiring adventures with NASA science by taking a trip to the NASA Wallops Flight Facility in Wallops Island, Virginia. Highlights from this trip included science and technology presentations by personnel from the Ice, Cloud, and land Elevation Satellite-2 (ICESat-2) and Global Precipitation Measurement (GPM) Missions, the Wallops Balloon Program Office, and the Wallops Machine Shop for Fabrication and Testing. The ICESat-2 presentation, in particular, included a discussion on the student-collected tree height data and how the ICESat-2 satellite makes tree height observations from space.

Ms. Danke’s work is a testament to the incredible impact educators can have when they connect classroom learning to authentic scientific discovery. By introducing her students to tools like the GLOBE Observer Trees Tool and facilitating meaningful contributions to NASA science, she opened the door to experiences most students only dream of—from collecting data that supports satellite missions to co-authoring peer-reviewed research and visiting NASA facilities. Stories like this remind us that when students are empowered to be part of real science, the possibilities—for learning, inspiration, and future careers in STEM—are truly limitless.

The GLOBE Observer app, used by Ms. Danke and her students, is made possible by the NASA Earth Science Education Collaborative (NESEC). This free mobile app includes four tools that enable citizen scientists to participate in NASA science: Clouds, Mosquito Habitat Mapper, Land Cover, and Trees. Learn more about ways that you can join and participate in this and other NASA Citizen Science projects. Through these projects, sometimes called “participatory science” projects, volunteers and amateurs have helped make thousands of important scientific discoveries, and they are open to everyone around the world (no citizenship required).

NESEC is supported by NASA under cooperative agreement award number NNX16AE28A 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

An image of a map with buildings, vegetation, green circles containing a drawings of trees.
Map of tree height around the Monsignor McClancy Memorial High School from the GLOBE Program’s Visualization System.

I know this was an experience they will remember forever and they have already told me that they cannot wait to tell their future children about it. It was wonderful meeting you in person and being on site to get a real sense of what you are working on. The boys were especially fascinated by the last two stops on the tour and appreciated learning a little more about how tree height is measured. Thank you again for this incredible opportunity.”

Ms. Deanna Danke

Ms. Deanna Danke

Monsignor McClancy Memorial High School

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Last Updated
Apr 10, 2025
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NASA Science Editorial Team
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NASA Measures Moonlight to Improve Earth Observations

NASA Measures Moonlight to Improve Earth Observations

A team of people carry a science instrument across a hangar floor. Two men at the back left of the frame roll a cart carrying the instrument body while four others ahead of the cart walk toward the right of the frame carrying a heavy twine of cables attached to the instrument.
The airborne Lunar Spectral Irradiance (air-LUSI) instrument is moved across the hangar floor by robotic engineer Alexander McCafferty-Leroux ,from right to left, co-investigator Dr. John Woodward, NIST astronomer Dr. Susana Deustua, air-LUSI chief system engineer Dr. Kathleen “Kat” Scanlon, and members of the ER-2 ground crew at NASA’s Armstrong Flight Research Center in Edwards, California, in March 2025.
NASA/Genaro Vavuris

Flying high above the clouds and moon-gazing may sound like a scene from a timeless romance, but NASA did just that in the name of Earth science research. In March 2025 pilots took the agency’s ER-2 science aircraft on a series of night flights over NASA’s Armstrong Flight Research Center in Edwards, California, as the Moon increased in visible size. For those few nights, the high-flying plane was converted into a one-of-a-kind airborne lunar observatory.

The Airborne Lunar Spectral Irradiance, or air-LUSI, mission observed the Moon at different phases and measured the sunlight reflected by the lunar surface. Specifically, the instrument tracks the amount of light reflected at different wavelengths. This information enables scientists to use the Moon as a calibration tool for Earth-observing sensors.

As an “absolute reference, the Moon also becomes the perfect benchmark for satellites to consistently and accurately measure processes on Earth,” said Kevin Turpie, air-LUSI’s principal investigator and a researcher based at NASA’s Goddard Space Flight Center in Greenbelt, Maryland. This helps scientists to improve the precision of many different measurements, including data on weather patterns, vegetation growth, and ocean conditions.

As the highest-flying platform for airborne science, the ER-2 can fly the air-LUSI instrument in the stratosphere, above 95% of the atmosphere. Data collected at an altitude nearing 70,000 feet are highly accurate because the air is predominantly clear of the gases and particles found in the lower atmosphere that can interfere with measurements.

In the center of a hangar floor, a plane faces the open hangar doors. Overhead, hangar lights illuminate the aircraft’s wide wingspan. There are red lines on the asphalt in front of the hangar.
The ER-2 aircraft is parked in a hangar at NASA’s Armstrong Flight Research Center in Edwards, California, in March 2025. The plane is prepared for takeoff to support the airborne Lunar Spectral Irradiance, or air-LUSI, mission.
NASA/Genaro Vavuris

“To date, air-LUSI measurements of the Moon are the most accurate ever made,” said Kelsey Bisson, the NASA program scientist supporting the mission. “Air-LUSI data can advance our ability to understand the Earth and our weather, and they provide a new way to calibrate satellites that can result in cost savings.”

The quality of these data has transformative implications for satellite and Earth observing systems. The improved accuracy and enhanced ability provided by air-LUSI data flown on the ER-2 reduces the need for onboard reference devices, effectually cutting satellite costs.

The air-LUSI project is a collaboration between scientists and engineers from NASA, the National Institute of Standards and Technology, the U.S. Geological Survey, the University of Maryland Baltimore County, and McMaster University in Ontario.

Two men manipulate some entwined cables in the cozy space beneath an aircraft. The cables vary in thickness and color and are attached to a box with bright orange tape enclosing the scientific instrument.
The ER-2 ground crew Wissam Habbal, left, and Dr. Kevin Turpie, airborne Lunar Spectral Irradiance (air-LUSI) principal investigator, guide delicate fiber optic and electric cabling into place while uploading the air-LUSI instrument onto the ER-2 aircraft in March 2025 at NASA’s Armstrong Flight Research Center in Edwards, California.
NASA/Genaro Vavuris

“The collective effort of the American and Canadian team members offers an opportunity for truly exciting engineering and science collaboration,” said Andrew Gadsden, associate professor and associate chair for graduate studies in mechanical engineering at McMaster University, and co-investigator on the air-LUSI project. The McMaster team developed the Autonomous Robotic Telescope Mount Instrument System and High-Altitude Aircraft Mounted Robotic (HAAMR) telescope mount, which support the air-LUSI system.

A man’s head and shoulders are just visible as he stands in the open trapdoor to an aircraft’s instrument pod. His hands hold the cables protruding from the interior of the instrument installed on the aircraft, and he focuses on some unseen instrument element beneath the frame of the photo. He has short gray hair and wears glasses that sit at the tip of his nose.
Dr. John Woodward, of the National Institute of Standards and Technology and co-investigator on the airborne Lunar Spectral Irradiance (air-LUSI) mission, prepares the instrument for upload onto the ER-2 aircraft in March 2025 at NASA’s Armstrong Flight Research Center in Edwards, California.
NASA/Genaro Vavuris

The HAAMR telescope mount was integrated onto the ER-2 and flown for the first time during the science flights in March. This new lunar tracking system is contributing to what John Woodward IV, co-investigator for air-LUSI, called the “highest accuracy measurements” of moonlight. To improve Earth observation technology, air-LUSI represents an important evolutionary step.

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Gary Daines

Have We Been to Uranus? We Asked a NASA Expert: Episode 56

Have We Been to Uranus? We Asked a NASA Expert: Episode 56

2 min read

Preparations for Next Moonwalk Simulations Underway (and Underwater)

Have we ever been to Uranus?

The answer is simple, yes, but only once. The Voyager II spacecraft flew by the planet Uranus back in 1986, during a golden era when the Voyager spacecraft explored all four giant planets of our solar system. It revealed an extreme world, a planet that had been bowled over onto its side by some extreme cataclysm early in the formation of the solar system.

That means that its seasons and its magnetic field get exposed to the most dramatic seasonal variability of any place that we know of in the solar system. The atmosphere was a churning system made of methane and hydrogen and water, with methane clouds showing up as white against the bluer background of the planet itself.

The densely packed ring system is host to a number of very fine, narrow and dusty rings surrounded by a collection of icy satellites. And those satellites may harbor deep, dark, hidden oceans beneath an icy crust of water ice.

Taken together, this extreme and exciting system is somewhere that we simply must go back to explore and hopefully in the next one to two decades NASA and the European Space Agency will mount an ambitious mission to go out there and explore the Uranian system. It’s important not just for solar system science, but also for the growing field of exoplanet science. As planets of this particular size, the size of Uranus, about four times wider than planet Earth, seem to be commonplace throughout our galaxy.

So how have we been to Uranus? Yes, but it’s time that we went back.

[END VIDEO TRANSCRIPT]

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Emily Furfaro

Linear Sand Dunes in the Great Sandy Desert

Linear Sand Dunes in the Great Sandy Desert

A view of linear dunes in the Great Sandy Desert in Australia from the International Space Station. The sand is mostly orange, with some red spots and some dark brown spots. There is a thick white line that cuts through the middle of the dunes; this is a lake with sediment and salts from evaporated flood waters.
In northwest Australia, the Great Sandy Desert holds great geological interest as a zone of active sand dune movement. While a variety of dune forms appear across the region, this astronaut photograph features numerous linear dunes (about 25 meters high) separated in a roughly regular fashion (0.5 to 1.5 kilometers apart).
NASA

On March 25, 2013, an astronaut aboard the International Space Station took this photo of the Great Sandy Desert in northwest Australia, showcasing linear dunes separated in a roughly regular fashion. When you fly over such dune fields—either in an airplane or the space station—the fire scars stand out. Where thin vegetation has been burned, the dunes appear red from the underlying sand; dunes appear darker where the vegetation remains.

Strings of narrow lakes that represent ancient rivers are also present in the region. The white feature down the center of the image is Lake Auld. The color is the result of a cemented combination of fine, clay-like sediment and salts from the evaporation of flood waters that occasionally fill the lake. Linear dunes can be seen entering Lake Auld on the east side. During flooding events, the sand of the dune noses is dispersed, becoming incorporated into the muds and salts of the lake floor sediments. During the long, intervening dry periods, sand can blow across the lake floor to build thinner, smaller dunes, visible as linear accumulations on the west side of the lake.

See more photos taken by astronauts.

Text credit: NASA/M. Justin Wilkinson

Image credit: NASA

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Monika Luabeya