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By NASA
NASA/Nichole Ayers A SpaceX Dragon spacecraft carrying the Axiom Mission 4 crew docks to the space-facing port of the International Space Station’s Harmony module on June 26. Axiom Mission 4 is the fourth all-private astronaut mission to the orbiting laboratory, welcoming commander Peggy Whitson, former NASA astronaut and director of human spaceflight at Axiom Space, ISRO (Indian Space Research Organisation) astronaut and pilot Shubhanshu Shukla, and mission specialists ESA (European Space Agency) project astronaut Sławosz Uznański-Wiśniewski of Poland and HUNOR (Hungarian to Orbit) astronaut Tibor Kapu of Hungary.
The crew is scheduled to remain at the space station, conducting microgravity research, educational outreach, and commercial activities, for about two weeks. This mission serves as an example of the success derived from collaboration between NASA’s international partners and American commercial space companies.
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By European Space Agency
Asteroid 2024 YR4 made headlines earlier this year when its probability of impacting Earth in 2032 rose as high as 3%. While an Earth impact has now been ruled out, the asteroid’s story continues.
The final glimpse of the asteroid as it faded out of view of humankind’s most powerful telescopes left it with a 4% chance of colliding with the Moon on 22 December 2032.
The likelihood of a lunar impact will now remain stable until the asteroid returns to view in mid-2028. In this FAQ, find out why we are left with this lingering uncertainty and how ESA's planned NEOMIR space telescope will help us avoid similar situations in the future.
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By European Space Agency
At the Living Planet Symposium, attendees have been hearing how ESA’s Next Generation Gravity Mission could provide the first opportunity to directly track a vital ocean circulation system that warms our planet – but is now weakening, risking a possible collapse with far-reaching consequences.
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By NASA
Earth (ESD) Earth Explore Explore Earth Home Air Quality Climate Change Freshwater Life on Earth Severe Storms Snow and Ice The Global Ocean Science at Work Earth Science at Work Technology and Innovation Powering Business Multimedia Image Collections Videos Data For Researchers About Us 4 min read
NASA-Assisted Scientists Get Bird’s-Eye View of Population Status
Through the eBird citizen scientist program, millions of birders have recorded their observations of different species and submitted checklists to the Cornell Lab of Ornithology. Through a partnership with NASA, the lab has now used this data to model and map bird population trends for nearly 500 North American species.
Led by Alison Johnston of the University of St. Andrews in Scotland, the researchers reported that 75% of bird species in the study are declining at wide-range scales. And yet this study has some good news for birds. The results, published in Science in May, offer insights and projections that could shape the future conservation of the places where birds make their homes.
“This project demonstrates the power of merging in situ data with NASA remote sensing to model biological phenomena that were previously impossible to document,” said Keith Gaddis, NASA’s Biological Diversity and Ecological Forecasting program manager at the agency’s headquarters in Washington, who was not involved in the study. “This data provides not just insight into the Earth system but also provides actionable guidance to land managers to mitigate biodiversity loss.”
Rock wren in Joshua Tree National Park. National Park Service / Jane Gamble A team from Cornell, the University of St. Andrews, and the American Bird Conservancy used land imaging data from NASA’s Moderate Resolution Imaging Spectroradiometer (MODIS) instruments to distinguish among such specific bird habitats as open forests, dense shrublands, herbaceous croplands, and forest/cropland mosaics. They also drew on NASA weather information and water data that matched the dates and times when birders made their reports.
When combined with a 14-year set of eBird checklists — 36 million sets of species observations and counts, keyed directly to habitats — the satellite data gave researchers almost a strong foundation to produce a clear picture of the health of bird populations. But there was one missing piece.
Wrestling with Wren Data
While some eBird checklists come from expert birders who’ve hiked deep into wildlife preserves, others are sent in by novices watching bird feeders and doing the dishes. This creates what Cornell statistician Daniel Fink described as “an unstructured, very noisy data set,” complete with gaps in the landscape that birders did not reach and, ultimately, some missing birds.
To account for gaps where birds weren’t counted, the researchers trained machine learning models to fill in the maps based on the remote sensing data. “For every single species — say the rock wren — we’ve created a simulation that mimics the species and a variety of ways that it could respond to changes in the environment,” Johnston said. “Thousands of simulations underlie the results we showed.”
CornellLab eBird The researchers achieved unprecedented resolution, zeroing in on areas 12 miles by 12 miles (27 km by 27 km), the same area as Portland, Oregon. This new population counting method can also be applied to eBird data from other locations, Fink said. “Now we’re using modeling to track bird populations — not seasonally through the year, but acrossthe years — a major milestone,” he added.
“We’ve been able to take citizen science data and, through machine learning methodology, put it on the same footing as traditionally structured surveys, in terms of the type of signal we can find,” said Cornell science product manager Tom Auer. “It will increase the credibility and confidence of people who use this information for precise conservation all over the globe.”
The Up Side
Since 1970, North America has lost one-quarter of its breeding birds, following a global trend of declines across species. The causes range from increased pollution and land development to changing climate and decreased food resources. Efforts to reverse this loss depend on identifying the areas where birds live at highest risk, assessing their populations, and pinpointing locations where conservation could help most.
For 83% of the reported species in the new study, the decline was greatest in spots where populations had previously been most abundant — indicating problems with the habitat.
“Even in species where populations are declining a lot, there are still places of hope, where the populations are going up,” Johnston said. The team found population increases in the maps of 97% of the reported species. “That demonstrates that there’s opportunity for those species.”
“Birds face so many challenges,” said Cornell conservationist Amanda Rodewald. “This research will help us make strategic decisions about making changes that are precise, effective, and less costly. This is transformative. Now we can really drill in and know where specifically we’re going to be able to have the most positive impact in trying to stem bird declines.”
By Karen Romano Young
NASA Headquarters, Washington
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Last Updated Jun 25, 2025 Related Terms
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By NASA
Editor’s note: This interview was conducted in October 2023.
As the International Space Station approaches 25 years of continuous human presence on Nov. 2, 2025, it is a meaningful moment to recognize those who have been there since the beginning—sharing the remarkable achievements of human spaceflight with the world.
If you have ever witnessed the live coverage of a NASA spacewalk or launch, then you know the captivating voice of celestial storyteller Rob Navias. Navias effortlessly blends expertise, enthusiasm, and profound insight into every mission.
Rob Navias on console in the Mission Control Center covering an Extravehicular Activity aboard the International Space Station. NASA/Bill Stafford I relay the facts and data with history in mind. You need to maintain a sense of history if you're going to be able to tell the contemporary story properly.
Rob Navias
Public Affairs Officer and Mission Commentator
Navias works within the Office of Public Affairs on mission operations and television in NASA Johnson Space Center’s Office of Communications, leading public affairs activities involving launches and landings of U.S. astronauts and international partner crew members. He is iconically known as the voice of NASA.
He has been a part of some of the most impactful moments in space exploration history, communicating the facts in real time with unmatched clarity. He covered every shuttle mission from the maiden launch of Columbia in April 1981 to Atlantis’ final voyage in July 2011. Navias is known for connecting others accurately and honestly to key moments in time.
Navias’ extraordinary contributions to space communications garnered him the 2017 Space Communicator Award from the Rotary National Award for Space Achievement Foundation. This prestigious accolade is presented to individuals or teams who have made remarkable contributions to public understanding and appreciation of space exploration. Navias’ unwavering dedication to NASA was recognized with the 2023 Length of Federal Service Award, commemorating his 30-year commitment to the agency.
His legacy continued on screen in Cosmic Dawn, the NASA documentary exploring the James Webb Space Telescope’s incredible journey. Featured for his role as the launch commentator during Webb’s Christmas Day 2021 liftoff, Navias brought historical context and lived experience to one of NASA’s most ambitious missions.
As long as we can maintain a shared vision and curiosity, all nations can go a long way up to the universe.
Rob Navias
Public Affairs Officer and Mission Commentator
He began his broadcast career as a correspondent for networks covering the Space Shuttle Program. Before joining NASA in 1993, Navias had a 25-year career in broadcast journalism where he reported the voyage of Pioneer 11, a robotic space probe that studied the asteroid belt and the rings of Saturn, as well as the test flights for the Space Shuttle Enterprise at Edwards Air Force Base in California and the Voyager missions from NASA’s Jet Propulsion Laboratory in Southern California.
Navias also covered the Apollo-Soyuz Test Project as a broadcast journalist. That first international human spaceflight showed the world there was a way for nations to work together peacefully for a common goal, Navias stated.
“Once the commitment was made to fund the construction of an international space station, it broadened the agency’s scope to work multiple programs that could be a stepping stone beyond low Earth orbit,” Navias said.
Rob Navias (left), accompanied by Phil Engelauf and John Shannon, during an STS-114 Flight Director press briefing.NASA I think the greatest legacy of the International Space Station will ultimately be the diplomatic oasis it has provided in orbit for exploration and scientific research.
ROB Navias
Public Affairs Officer and Mission Commentator
Navias explained that during his time at NASA, he has learned a lot about himself. “The day you stop absorbing information, the day that you grow tired of learning new things is the day you need to walk away,” he said. “The challenge of spaceflight keeps me here at NASA.”
Navias underscored the importance of nurturing and retaining the agency’s brilliant workforce who have shaped the pioneering mindset of human space exploration. He believes blending talent, resources, and industry expertise is the key to returning to the Moon and going to Mars. This collaborative mindset has not only resulted in establishing a laboratory in low Earth orbit but also paved the way for future missions.
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