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By European Space Agency
Astronomers have discovered a huge filament of hot gas bridging four galaxy clusters. At 10 times as massive as our galaxy, the thread could contain some of the Universe’s ‘missing’ matter, addressing a decades-long mystery.
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By USH
A mysterious object within our own galaxy is emitting a bizarre pulsing signal directed at Earth, one that scientists say is unlike anything ever recorded, and they haven’t ruled out an alien origin.
NASA astrophysicist Dr. Richard Stanton, who led the research team, described the signal as “strange” and said its properties defy all known astrophysical explanations. “In more than 1,500 hours of observations, we’ve never seen a pulse like this,”
Stanton noted. The signal originates from a sun-like star approximately 100 light-years away in the constellation Ursa Major (the Great Bear). It was first detected as a flash of light that abruptly brightened, dimmed, and then brightened again, an unusual pattern that immediately drew attention.
Even more puzzling, the pulse repeated exactly four seconds later, matching the first in every detail.
According to Stanton’s findings, published in Acta Astronautica, the signal also triggered bizarre activity in the host star, causing it to partially vanish in just a tenth of a second, a phenomenon with no clear scientific explanation.
It's noteworthy that this object was specifically targeting Earth with its signal, not just broadcasting randomly into space, but directing its transmission toward our planet.
Whatever the intention behind it, that alone is intriguing. Even more interesting is that NASA publicly acknowledged this discovery. While NASA’s statements aren't always fully transparent, could this be a prelude to something bigger, perhaps a forthcoming revelation about the discovery of a Dyson Sphere, or even confirmation of intelligent extraterrestrial life?
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By NASA
Explore This Section Science Science Activation Eclipses, Auroras, and the… Overview Learning Resources Science Activation Teams SME Map Opportunities More Science Activation Stories Citizen Science 4 min read
Eclipses, Auroras, and the Spark of Becoming: NASA Inspires Future Scientists
In the heart of Alaska’s winter, where the night sky stretches endlessly and the aurora dances across the sky in a display of ethereal beauty, nine undergraduate students from across the United States were about to embark on a transformative journey. These students had been active ‘NASA Partner Eclipse Ambassadors’ in their home communities, nine of more than 700 volunteers who shared the science and awe of the 2024 eclipse with hundreds of thousands of people across the country as part of the NASA Science Activation program’s Eclipse Ambassadors project. Now, these nine were chosen to participate in a once-in a lifetime experience as a part of the “Eclipses to Aurora” Winter Field School at the University of Alaska Fairbanks. Organized by the Astronomical Society of the Pacific and NASA’s Aurorasaurus Citizen Science project, supported by NASA, this program offered more than just lectures—it was an immersive experience into the wonders of heliophysics and the profound connections between the Sun and Earth.
From January 4 to 11, 2025, the students explored the science behind the aurora through seminars on solar and space physics, hands-on experiments, and tours of cutting-edge research facilities like the Poker Flat Research Range. They also gained invaluable insight from Athabaskan elders, who shared local stories and star knowledge passed down through generations. As Feras recalled, “We attended multiple panels on solar and space physics, spoke to local elders on their connection to the auroras, and visited the Poker Flat Research Range to observe the stunning northern lights.”
For many students, witnessing the aurora was not only a scientific milestone, but a deeply personal and emotional experience. One participant, Andrea, described it vividly: “I looked to the darkest horizon I could find to see my only constant dream fulfilled before my eyes, so slowly dancing and bending to cradle the stars. All I could do, with my hands frozen and tears falling, I began to dream again with my eyes wide open.” Another student, Kalid, reflected on the shared human moment: “Standing there under the vast Alaskan sky… we were all just people, looking up, waiting for something magical. The auroras didn’t care about our majors or our knowledge—they brought us together under the same sky.”
These moments of wonder were mirrored by a deeper sense of purpose and transformation. “Over the course of the week, I had the incredible opportunity to explore auroras through lectures on solar physics, planetary auroras, and Indigenous star knowledge… and to reflect on these experiences through essays and presentations,” said Sophia. The Winter Field School was more than an academic endeavor—it was a celebration of science, culture, and shared human experience. It fostered not only understanding but unity and awe, reminding everyone involved of the profound interconnectedness of our universe.
The impact of the program continues to resonate. For many students, that one aurora-lit week in Alaska became a turning point in the focus of their careers. Sophia has since been accepted into graduate school to pursue heliophysics. Vishvi, inspired by the intersection of science and society, will begin a program in medical physics at the University of Pennsylvania this fall. And Christy, moved by her time at the epicenter of aurora research, has applied to the Ph.D. program in Space Physics at the University of Alaska Fairbanks—the very institution that helped spark her journey. Their stories are powerful proof that the Winter Field School didn’t just teach—it awakened purpose, lit new paths, and left footprints on futures still unfolding.
Eclipse Ambassadors is supported by NASA under cooperative agreement award number 80NSS22M0007 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/about-science-activation/
Participants at the Winter Field School are enjoying the trip to Anchorage, AK. Andy Witteman Share
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Last Updated May 14, 2025 Editor NASA Science Editorial Team Related Terms
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Keep Exploring Discover More Topics From NASA
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By NASA
Explore This Section Projects Highlights Publications NASA Citizen Scientists Science Activation Resources 2 min read
Amateur Radio Scientists Shine at the 2025 HamSCI Workshop
A collage of Posters from HamSCI’s March workshop. You can read them all online! Love Ham Radio? The HamSCI project fosters collaboration between amateur radio operators and professional researchers. Its goals are to advance scientific research and understanding through amateur radio activities, encourage the development of modern technologies to support this research, and provide educational opportunities for the amateur community and the public.
HamSCI held its annual Workshop, ‘HamSCI’s Big Year’, at the New Jersey Institute of Technology in late March. Over 100 members of the HamSCI community attended: researchers, students (secondary through graduate level), and citizen scientist volunteers. Over the two-day event, in-person and virtual participants experienced twenty-five talks on topics ranging from analysis of HamSCI’s 2023/24 Festivals of Eclipse Ionospheric Science events to space weather observations made during the May 10, 2024 geomagnetic superstorm.
The Workshop hosted a variety of Keynote and Invited Tutorial speakers, including distinguished scientists and leaders in the Amateur (ham) Radio community. The Workshop concluded with a poster session, featuring current research, ongoing educational activities, and concepts for future events involving Sun-space-Earth science topics. Posters were submitted from the US, Brazil, Egypt, the United Kingdom, and Turkey.
Explore the workshop presentations and posters. Videos of conference presentations will be available at the HamSCI website in a few months.
HamSCI is supported by NASA, the National Science Foundation, and the Amateur Radio Digital Communications (ARDC) foundation.
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Last Updated May 01, 2025 Related Terms
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By European Space Agency
A new wave of ocean scientists has embarked on an extraordinary six-week voyage aboard a majestic tall ship that set sail today from Norway bound for southern France. But this is no ordinary journey.
Thanks to this ESA Advanced Ocean Training Course, these upcoming researchers will be taking a deep dive into ocean science, empowering them with skills to harness satellite data for research, innovation and sustainable development – and preparing them to become tomorrow’s leaders and ambassadors for ocean science.
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