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By NASA
This artist’s concept depicts a magnetar – a type of neutron star with a strong magnetic field – losing material into space. Shown as thin green lines, the magnetic field lines influence the movement of charged material around the magnetar. NASA/JPL-Caltech Since the big bang, the early universe had hydrogen, helium, and a scant amount of lithium. Later, some heavier elements, including iron, were forged in stars. But one of the biggest mysteries in astrophysics is: How did the first elements heavier than iron, such as gold, get created and distributed throughout the universe?
“It’s a pretty fundamental question in terms of the origin of complex matter in the universe,” said Anirudh Patel, a doctoral student at Columbia University in New York. “It’s a fun puzzle that hasn’t actually been solved.”
Patel led a study using 20-year-old archival data from NASA and ESA telescopes that finds evidence for a surprising source of a large amount of these heavy elements: flares from highly magnetized neutron stars, called magnetars. The study is published in The Astrophysical Journal Letters.
Study authors estimate that magnetar giant flares could contribute up to 10% of the total abundance of elements heavier than iron in the galaxy. Since magnetars existed relatively early in the history of the universe, the first gold could have been made this way.
“It’s answering one of the questions of the century and solving a mystery using archival data that had been nearly forgotten,” said Eric Burns, study co-author and astrophysicist at Louisiana State University in Baton Rouge.
How could gold be made at a magnetar?
Neutron stars are the collapsed cores of stars that have exploded. They are so dense that one teaspoon of neutron star material, on Earth, would weigh as much as a billion tons. A magnetar is a neutron star with an extremely powerful magnetic field.
On rare occasions, magnetars release an enormous amount of high-energy radiation when they undergo “starquakes,” which, like earthquakes, fracture the neutron star’s crust. Starquakes may also be associated with powerful bursts of radiation called magnetar giant flares, which can even affect Earth’s atmosphere. Only three magnetar giant flares have been observed in the Milky Way and the nearby Large Magellanic Cloud, and seven outside.
Patel and colleagues, including his advisor Brian Metzger, professor at Columbia University and senior research scientist at the Flatiron Institute in New York, have been thinking about how radiation from giant flares could correspond to heavy elements forming there. This would happen through a “rapid process” of neutrons forging lighter atomic nuclei into heavier ones.
Protons define the element’s identity on the periodic table: hydrogen has one proton, helium has two, lithium has three, and so on. Atoms also have neutrons which do not affect identity, but do add mass. Sometimes when an atom captures an extra neutron the atom becomes unstable and a nuclear decay process happens that converts a neutron into a proton, moving the atom forward on the periodic table. This is how, for example, a gold atom could take on an extra neutron and then transform into mercury.
In the unique environment of a disrupted neutron star, in which the density of neutrons is extremely high, something even stranger happens: single atoms can rapidly capture so many neutrons that they undergo multiple decays, leading to the creation of a much heavier element like uranium.
When astronomers observed the collision of two neutron stars in 2017 using NASA telescopes and the Laser Interferomete Gravitational wave Observatory (LIGO), and numerous telescopes on the ground and in space that followed up the initial discovery, they confirmed that this event could have created gold, platinum, and other heavy elements. But neutron star mergers happen too late in the universe’s history to explain the earliest gold and other heavy elements. Recent research by co-authors of the new study — Jakub Cehula of Charles University in Prague, Todd Thompson of The Ohio State University, and Metzger — has found that magnetar flares can heat and eject neutron star crustal material at high speeds, making them a potential source.
A rupture in the crust of a highly magnetized neutron star, shown here in an artist’s rendering, can trigger high-energy eruptions. Credit: NASA’s Goddard Space Flight Center/S. Wiessinger New clues in old data
At first, Metzger and colleagues thought that the signature from the creation and distribution of heavy elements at a magnetar would appear in the visible and ultraviolet light, and published their predictions. But Burns in Louisiana wondered if there could be a gamma-ray signal bright enough to be detected, too. He asked Metzger and Patel to check, and they found that there could be such a signature.
“At some point, we said, ‘OK, we should ask the observers if they had seen any,’” Metzger said.
Burns looked up the gamma ray data from the last giant flare that has been observed, which was in December 2004. He realized that while scientists had explained the beginning of the outburst, they had also identified a smaller signal from the magnetar, in data from ESA (European Space Agency)’s INTErnational Gamma-Ray Astrophysics Laboratory (INTEGRAL), a recently retired mission with NASA contributions. “It was noted at the time, but nobody had any conception of what it could be,” Burns said.
Metzger remembers that Burns thought he and Patel were “pulling his leg” because the prediction from their team’s model so closely matched the mystery signal in the 2004 data. In other words, the gamma ray signal detected over 20 years ago corresponded to what it should look like when heavy elements are created and then distributed in a magnetar giant flare.
Patel was so excited, “I wasn’t thinking about anything else for the next week or two. It was the only thing on my mind,” he said.
Researchers supported their conclusion using data from two NASA heliophysics missions: the retired RHESSI (Reuven Ramaty High Energy Solar Spectroscopic Imager) and the ongoing NASA’s Wind satellite, which had also observed the magnetar giant flare. Other collaborators on the new study included Jared Goldberg at the Flatiron Institute.
Next steps in the magnetar gold rush
NASA’s forthcoming COSI (Compton Spectrometer and Imager) mission can follow up on these results. A wide-field gamma ray telescope, COSI is expected to launch in 2027 and will study energetic phenomena in the cosmos, such as magnetar giant flares. COSI will be able to identify individual elements created in these events, providing a new advancement in understanding the origin of the elements. It is one of many telescopes that can work together to look for “transient” changes across the universe.
Researchers will also follow up on other archival data to see if other secrets are hiding in observations of other magnetar giant flares.
“It very cool to think about how some of the stuff in my phone or my laptop was forged in this extreme explosion of the course of our galaxy’s history,” Patel said.
Media Contact
Elizabeth Landau
Headquarters, Washington
202-358-0845
elandau@nasa.gov
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By USH
Shape-Shifting Materials are advanced, adaptive materials capable of changing their physical form, embedding sensors and circuits directly into their structure, and even storing energy, all without traditional wiring. Lockheed Martin is at the forefront of developing these futuristic materials, raising questions about the possible extraterrestrial origin of this technology.
In a previous article, we discussed why suppressed exotic technologies are suddenly being disclosed. One company that frequently comes up in this conversation is Lockheed Martin, the American defense and aerospace giant known for pushing the boundaries of aviation and space innovation.
Imagine an aircraft that can grow its own skin, embed sensors into its body, store energy without wires, and even shift its shape mid-flight to adapt to changing conditions. This isn’t science fiction anymore, Lockheed Martin’s cutting-edge research is turning these futuristic concepts into reality.
But where is all this coming from?
The rapid development and creativity behind Lockheed Martin’s projects raise intriguing questions. Whistleblowers like David Grusch have recently alleged that Lockheed Martin has had access to recovered UFO materials for decades. Supporting this, Don Phillips, a former Lockheed engineer, confirmed years ago that exotic materials have been held and studied by the company since at least the 1950s.
This suggests that for over half a century, Lockheed has secretly been engaged in researching and reverse-engineering off-world technologies. It's possible that the breakthroughs we’re seeing today are the result of this hidden legacy. Ben Rich, former head of Lockheed’s Skunk Works division, famously hinted at this when he said, "We now have the technology to take ET home."
One particularly stunning development involves "smart" materials that behave almost like muscles, allowing aircraft structures to morph in real-time. These materials enable a craft to fine-tune its aerodynamics on the fly, adjusting instantly to turbulence, speed shifts, or mission-specific demands.
Lockheed’s innovations go even further. By embedding carbon nanotubes, extremely strong and highly conductive microscopic structure, directly into the material, they have created surfaces that can transfer information and power without traditional wiring. In these next-generation aircraft, the "skin" itself acts as the nervous system, the energy grid, and the sensor network all at once.
You can only imagine the kinds of technologies that have been developed over the years through the reverse engineering of exotic materials and recovered extraterrestrial craft. Yet, governments and space agencies remain tight-lipped about the existence of advanced alien civilizations, who likely introduced these techniques to Earth unintentionally.
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By NASA
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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By Space Force
The DoD is offering a path back to service for military personnel who voluntarily separated or left to avoid the COVID-19 vaccination mandate.
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