In 2023 we detect an absolutely anomalous explosion at the edge of the Universe. Now we know what happened

In 2023, the Zwicky Transient Facility, an astronomical consortium led by Caltech, detected a curious signal on the outskirts of a dwarf galaxy 1.3 billion light years away. At first everything seemed to indicate that it was the result of a type II supernova explosion. It’s always interesting to spot one, but it’s not unusual. However, as soon as they tried to classify it a little better, they realized that it had many qualities that did not fit within the definition of this phenomenon. Investigating, they discovered that, in reality, the signal corresponds to one of the rarest explosions that occur in the Universe: a pairwise instability supernova. A special supernova. Pairwise instability supernovae are supernova explosions that occur when the original star is very massive and is in an environment with low metallicity. Furthermore, there is another big difference. After a typical supernova explosion, either a neutron star or a black hole usually forms. In this case, however, it can be said that the stars completely self-destruct, without leaving any remnants. It is a very rare phenomenon, very difficult to detect. However, the authors of the study that has just been published hope, with what they have learned from this finding, to locate other similar events based on the data obtained with the Vera Rubin Observatory. The brightness curve that didn’t add up. Normally, when a normal supernova explosion occurs, the brightness curve is plateau-shaped. On the other hand, in this event, named SN 2023vbw, after an initial cooling, a constant increase in brightness was observed until reaching a very bright peak around 190 days. Then, until day 230, the brightness began to decrease and finally stabilized on a plateau. Other data that did not add up. The total irradiation energy of this phenomenon was 3× 1050 Ergs, a figure that is more than 10 times higher than that of a type II supernova. Furthermore, during ascent, the explosion stabilized at a nearly constant temperature while its outer shell continued to expand. For this to occur there must be a large and continuous internal heating source, which does not happen with a type II supernova. On the other hand, as the supernova faded, the emissions that were detected had nothing to do with those normal for a conventional supernova. Finally, the kinetic energy was 60 to 130 times greater than the maximum energy that an ordinary supernova can produce. Two very different supernovae. Normally, a very massive star is subject to two very powerful forces. On the one hand, that of gravity, which compresses it inward. On the other hand, that of radiation, which pushes outwards. Both forces remain in balance. However, when the star runs out of fuel to stay “on,” the radiation pressure decreases, so gravity pushes strongly inward. As a result, the star collapses, leading to a supernova explosion. Behind it a black hole or a neutron star can form. If the star is very massive and is also located in an environment with low metallicity, the process is slightly different. To begin with, such high temperatures are reached in its core that enough energy is generated for the photons to transform into an electron-positron pair. This phenomenon eliminates the pressure exerted by radiation much more suddenly, so that the force exerted by gravity, which is immense, causes the collapse of the star and, later, a very violent explosion. So violent that everything is destroyed, there is no remnant left. The location of SN 2023vbw (magenta circle) on the outskirts of its dwarf host galaxy (green circle). The role of metallicity. The low metallicity of the environment helps because metals normally absorb the radiation coming out of the star, favoring the expulsion of matter outward. If there are few metals, less matter will be extracted from the star and the greater its mass. A blue supergiant in an environment with very low metallicity. The light curves that were detected seem to correspond to a blue supergiant as a starting point. This very massive star, which can be caused by the merger of two stars in a binary system, can give rise to a type II supernova. However, we have already seen that the characteristics do not add up. However, the scientists who analyzed the results found the clue they were missing. That the explosion had occurred in an environment with very low metallicity. It corresponded approximately to a tenth of that of the Sun. It is the missing ingredient for a pairwise instability supernova to occur. A very rare phenomenon. This phenomenon is one of the rarest explosions that occur in the Universe. There are many very massive stars, but in general they are in very metal-rich environments, so a pairwise instability supernova cannot occur. Therefore, this discovery is very exciting. Although it may soon become more common. And not only because of the Vera Rubin Observatory that we have already mentioned. It is also expected that the brand new Nancy Grace Roman from NASA can detect more phenomena of this type when you start doing your work. Until then, detecting stars self-destructing in this way will remain even more difficult than finding a needle in a haystack. Image | Supernova remnant on cover. Credit: NASA/CXC/Rutgers/G.Cassam-Chenaï, J.Hughes et al.; Radio: NRAO/AUI/NSF/GBT/VLA/Dyer, Maddalena & Cornwell; Optical: Middlebury College/F.Winkler, NOAO/AURA/NSF/CTIO Schmidt & DSS | Hiramatsu et al. In Xataka | Caltech has published the “strongest evidence yet” that an unknown planet exists in the solar system

The nuclear explosion that changed the world also created a material that exists nowhere else in the known universe

On July 16, 1945, the first detonation of an atomic bomb—known as the trinity test— changed the course of history and left an indelible mark on the New Mexico desert. The explosion of the plutonium device released energy equivalent to 21 kilotons of TNT, enough to vaporize the 30-meter test tower, the kilometers of copper cables connecting the recording instruments, and the desert sand itself. All this material, carried by the immense fireball, rained down in the form of molten glassy fragments, creating a unique form of matter known today as trinite. The vast majority of this trinite is a classic green color, but there is a much rarer variant called “red trinite,” whose color is attributed to the presence of copper oxide formed when transmission lines vaporized in the explosion. It is precisely inside this rare variant where scientists have discovered unprecedented crystalline structures. The violent conditions of the detonation subjected the materials to temperatures of around 1,500 °C and extreme pressures of 5 to 8 gigapascals. The matter vaporized, mixed, and cooled so extremely quickly—in a matter of seconds—that the atoms did not have time to organize themselves into stable structures, forging forms of matter that had never existed on our planet. An unprecedented find. Almost 80 years after that first nuclear explosion, an international research team led by Luca Bindi, a geologist at the University of Florence, has managed to identify a new material hidden in these samples. As the research explainsit is a “clathrate”: a cage-shaped chemical network that traps other atoms inside. This new crystal is built with 12- and 14-sided silicon cages that enclose atoms of calcium, copper, and small amounts of iron. It represents the first time that the presence of a clathrate among the solid products of a nuclear explosion has been crystallographically confirmed. That this discovery comes now, in 2026, is no coincidence. Samples of red trinitite are extremely rare and difficult to obtain, and only recent advances in mining techniques x-ray diffraction At a nanoscopic scale, they have made it possible to identify such tiny structures within metallic microdroplets embedded in glass. The technology simply was not up to par with the material before. The quasicrystal that arrived first. The story becomes even more fascinating because this discovery joins another monumental find made by the same team in 2021: the identification of a quasicrystal in the same little red trinity. Unlike ordinary crystals—such as salt or quartz, which have a precisely repeating atomic pattern—quasicrystals break the rules of classical crystallography. Its atoms are ordered, but without periodically repeating themselves, which generates symmetries that are prohibited in a conventional crystal. The one found at Trinity exhibits five-fold icosahedral symmetry and is composed of silicon, copper, calcium and iron. It is not only the quasicrystal created by the oldest known human being: has the incredible property that its exact moment of creation was indelibly recorded in historical records. The decisive role of copper. The most elegant thing about the new study is the mechanism that explains why two such different structures were formed in the same explosion. The key was the concentration of copper available during cooling. In the microzones where copper levels were low —about 10 to 11%— conditions allowed the clathrate cage structure to stabilize. Where there was more copper, that same structure collapsed and the atoms rearranged themselves in the forbidden geometry of the quasicrystal. Two radically different destinies, separated by a microscopic difference in chemical composition, at the same time and in the same place. The power of natural laboratories. Discovering these architectures on a microscopic scale is revolutionary because, as Terry C. Wallace explainsdirector emeritus of Los Alamos National Laboratory and co-author of the quasicrystal research, these structures require extreme environments that rarely exist on Earth: colossal shocks, temperatures and pressures, comparable only to the hypervelocity impacts of meteorites or nuclear detonations themselves. Destructive events that, paradoxically, act as laboratories capable of producing what no conventional laboratory can replicate. A tool for global security. Beyond materials science, this type of research has direct applications in the field of nuclear nonproliferation. Understanding the design of other countries’ nuclear weapons programs is an enormous forensic challenge. Scientists often track radioactive gases and waste in test areas, but those signatures inevitably decay over time. The crystals formed at the site of the explosion, on the other hand, are practically eternal. The red trinitite samples still preserve radioactive isotopes that allow variables such as the exact distance to the hypocenter of the explosion to be calculated with great precision. Wallace sums it up clearly: If science can establish a precise thermodynamic explanation for how these crystals form, a complete picture of the bomb and the materials used could be obtained, giving the world a new tool to monitor illicit nuclear explosions. A timestamp that cannot be falsified or deleted. The paradoxical legacy of Trinity. The study of trinitite demonstrates how matter is capable of reorganizing itself in astonishing ways under unimaginably hostile conditions. It is an almost poetic paradox that an event designed for destruction has left, 80 years later, a hidden legacy of microscopic geometric perfection that is useful today for the human future. This discovery is not only a window into the creation of cutting-edge energy materials and technologies, but it functions as a compass for future research. As the experts conclude in his academic publicationexamine the remains of other extreme and fleeting natural phenomena, such as fulgurites forged by lightning strikes or rocks subjected to meteorite craters, could continue to reveal unusual configurations of matter. Even today, hidden beneath the scars of destruction, structures await that continue to challenge our fundamental understanding of the universe. Image | PNAS and Unsplash Xataka | Europe throws away 16 billion a year in electronic waste. Spain has just turned on the first oven in Europe to recover them

the brutal explosion of 12 megatons that in 1908 put us in front of the horrors of space

On June 30, 1908, an H-bomb-sized explosion destroyed millions of trees for dozens of miles around. This is how Tunguska, a remote Siberian region, entered the history books. Colossal dimensions. The explosion was so wild that there was talk of antimatter in 1965 or even a tiny black hole in 1973. But those are not by far the most “interesting” explanations. There has been talk of UFOs crashing by accident or, attention, of a proof of concept of the famous ““death ray” by Nikola Tesla. However, the reality is much more prosaic and, today, scientists debate whether it was a small asteroid or the fragment of a comet. Because neither in 1921 (when the first expedition was sent to the place), nor in any of the subsequent expeditions, has anything resembling a crater been found. what happened. How then do we know that something happened in Tunguska that June morning? Well, because the whole world found out: seismographs throughout Asia and all of Europe captured the explosion; The Greenwich Observatory captured variations in atmospheric pressure due to the amount of air put into circulation; and, to top it all off, the suspended dust made the night in northern Eurasia so bright that it seemed like day. 12 megatons. That is to say, something happened in those uninhabited lands of the Irkutsk Oblast, there is no doubt about that. The most accepted theory is that this small meteorite caused a thermonuclear explosion at about 8 kilometers in altitude and with a power of 12 megatons. Everything after was death and destruction. Could it be repeated? The short answer is yes. In fact events like of the Eastern Mediterranean, Vitim’s or even that of Chelyabinsk show that it is possible to repeat itself. The long answer is that it is unlikely. Not only because these types of events are already something quite rarebut because (as in all these cases) when they occur, they usually occur in depopulated areas. It’s not a coincidence. The vast majority of the Earth’s surface is unpopulated. However, we must not let our guard down. years ago, the people of Microsiervos rescued a text of Arthur C. Clarke where I imagined what would happen if Tunguska happened in the heart of Europe: At 9:46 (Greenwich Mean Time) on the morning of September 11, in the exceptionally beautiful summer of the year 2077, most of the inhabitants of Europe saw a dazzling fiery ball appear in the eastern sky. In a matter of seconds it became brighter than the Sun and as it moved across the sky—at first in complete silence—it left behind an undulating column of dust and smoke. At some point over Austria it began to disintegrate, producing a series of explosions, so violent that more than a million people were left with their hearing damaged forever. They were the lucky ones. Moving at fifty kilometers per second, a million tons of rock and metal fell onto the plains of northern Italy and destroyed the work of centuries in a flash of seconds. The cities of Padua and Verona were swept from the face of the Earth; and the last glories of Venice sank forever into the sea when the waters of the Adriatic thundered towards land after that devastating blow from heaven. The cultural impact. In the story, 600,000 people died, and the material damage was estimated at more than a trillion dollars.. Date with Rama It was published in 1973 and is, evidently, pure fiction. However, the story is suggestive: the capacity of outer space to compromise life on this planet is as certain as the dinosaurs were, 66 million years ago. That is why every year, on June 30, the Asteroid Day with the intention of raising awareness about this problem and discussing the possibilities we have to protect the Earth. Since this year, in addition, is recognized by the UN. Space is a wonderful place, but, like the nightis also dark and harbors horrors. It doesn’t hurt to remember it, at least once a year. In Xataka | Mysterious lights have been appearing in a remote valley in Norway since 1811. And we still don’t know what they are In Xataka | In 2011, something strange happened inside the Earth. We’ve been investigating it for years and we still don’t know what it was.

a new and painful explosion

The great hope for the next generation of Starship flights has gotten off to a bad start. SpaceX has suffered a new setback at Starbase, and only its rapid ability to iterate can save the furniture. An ephemeral life. The Super Heavy Booster 18, the first booster of the new version 3 of Starship, burst during the early hours of November 21 while SpaceX engineers validated their structural improvements. The prototype, which was due to launch during flight 12 in early 2026, lasted just 14 days after its assembly was completed. 48 hours after being moved to the Masseys test bench at Starbase, a pressure test of the gas system caused the liquid oxygen tank to burst. Redesigned systems. SpaceX’s objective was to test the rocket propellant systemswhich were redesigned for version 3. Fortunately, Booster 18 did not contain methane or liquid oxygen, which would have caused a large explosion like the one that Masseys destroyed in a fuel load from Starship 36 last June. With the area cleared and the Raptor engines not yet installed, Booster 18 has only caused one victim: its own structure, which has been rendered useless. The usual suspect. Although an official investigation is underway, the analysis of NASASpaceFlight points to the same component that caused the Starship 36 explosion: the rupture of one of the COPV tanks that store high-pressure nitrogen or oxygen gas in the rocket. These tanks are responsible for operating the valves and engine starting systems. The explosion of one of them could have caused a chain reaction in the adjacent COPVs strong enough to burst the wall of the rocket. And now what. The loss of Booster 18 is painful not only for being the first version 3 booster, but for being the prototype assigned to test the new Pad 2 launch pad at Starbase. Without a physical rocket to place at the base, SpaceX will not yet be able to fully test ground systems, such as the new platform’s tanks. As if it wasn’t already aggressive enough, SpaceX’s schedule is becoming even more tense. And the company maintains flight 12 scheduled during the first quarter of 2026. SpaceX has very ambitious goals in the short term, including the in-orbit fuel transfer tests that it will need to take astronauts to the Moon with Artemis III. a mission in which he now competes with Blue Origin and Lockheed Martin. Image | SpaceX In Xataka | A genius named Tom Mueller designed the engines for the Falcon 9. And now that genius wants to beat SpaceX on its own turf

The first European attempt to launch a commercial rocket at orbit has ended up explosion to northern Norway

First attempt. The inaugural launch of the Spectrum rocket, a test mission without payload called “Going Full Spectrum”took off at 12:30 CET on March 30 from the Andøya Space Puerto, in Norway. Originally scheduled for March 24, the flight was delayed several times due to bad weather conditions. After lighting their nine engines, the Spectrum He cleared the launch platform and rose without problems for 18 seconds. Then he began to lose control or overwhelming his orientation to the point of turning. In the second 30, all the engines went out and the rocket began to fall. The realization changed camera, but an explosion was heard shortly after. “A success!” The impact of the rocket near the platform and the fireball of the explosion They were captured by the Norwegian press. Despite the ruling, Isar Aerospace declared the launch A success. The CEO of the company, Daniel MetzlerHe added that the flight “has fulfilled all our expectations” with “an impeccable takeoff, 30 seconds of flight and we could even validate our flight termination system.” Although the rocket did not define, he turned off his engines not to deviate before falling. The launch platform is apparently intact. Flight launchers 2 and 3 are already in production. ISAR has compiled numerous data in this first test. Spectrum. What Isar Aerospace’s rocket has not been able to validate is the first orbital launching title of a European private company, since it has not reached orbit. Now the achievement is still open to other rockets such as RFA One of the German Rocket Factory Augsburg or Miura 5 of the Spanish Pld Space. Spectrum is a two -stage rocket and 28 meters high designed to transport up to 1000 kg to the low terrestrial orbit. The first stage has nine Aquila engines and the second one has one, optimized for space vacuum. All of their own design, with carbon fiber tanks without coating and 3D printed engines, fed with oxygen and liquid propane. Isar Aerospace. It was founded in 2018 in Germany with a Spacex -inspired approach: integrated production vertically and very automated, with the idea of ​​producing many prototypes, testing them and improving their design through multiple iterations. It is very well financed with a total investment of 400 million euros, which has taken the opportunity to build a new headquarters 40,000 square meters near Munich. According to Isar, it will have the capacity to produce 40 Spectrum rockets per year. Norway. Isar Aerospace has an exclusive platform in the Andøya Space Puerto in Norway, chosen for its ideal location to reach polar orbits and heliosíncronas and because the rocket takes off on the open ocean. It also has the meteorological problem that has been seen the days before the launch. Images | Isar Aerospace In Xataka | Europe’s access depends on the United States. ESA has presented a strategic plan to become independent

It is the second consecutive explosion and the greatest setback in the recent history of the rocket

Starship’s eighth flight was going to be a repetition of the previous launch, which Spacex could not complete because The ship ended up disintegrating On the Atlantic Ocean. However, exactly the same thing has happened again. The ship has exploded again. And in the same flight phase: eight minutes after takeoff, when Starship 34 was about to turn off to start its suborbital trajectory to the Indian Ocean. Like the Starship 33, the ship lost control when several of its engines (first three, and then a room) went out or exploited. Then he began to turn on his axis until he exploded, either because he ended up disintegrating, as his predecessor, or because the flight termination system was activated, self -controlled the rocket for security. The reentry was seen from Miami. The videos of the remains of the ship by disintegrating in the atmosphere soon appeared. From Bahamasfrom the Turkish Islands and Caicos and from Dominican Republic, last timebut also from Cabo Cañaveral and Miamisince the explosion occurred when the rocket was traveling at 20,000 km/h, while the flight from flight 7 exploded more than 21,000 km/Hy, therefore, further. As It happened in Januaryimmediately They began to deviate Also the airplanes. The areas where remains of the rocket can fall are delimited and, when an incident occurs, Spacex warns the authoritiesthat close the airspace, asking the pilots to deviate to other airports if necessary. Twice the same stone? According to the Spacex researchStarship 33 had failed by a “stronger harmonic resonance phenomenon” than expected. Vibrations that caused an oxygen leak in the lower part of the rocket, which in turn triggered a fire, which in turn exploded the engines. Spacex did a test of On a one -minute land To try to better understand the problem, and tried to mitigate the effects of these vibrations improving the ventilation of the lower part of the ship, to avoid an accumulation of gases. Although it is not confirmed that the Starship 34 has failed for the same reasons, in An image of the direct A small fire has been seen, and in another The explosion of an engine. Something happens with the Starship Block 2. Put to find guilty, the greatest setback in the recent history of the Starship program coincides with a change of version. Starship 33 and Starship 34 are First block models 2, which represent the second generation of the ship-cohete. Two meters higher than the previous generation, has methane deposits and liquid oxygen of greater capacity, improvements in the thermal shield, renewed front alerons and changes in propulsion subsystems. Whatever it is, something has failed in this iteration, and Spacex now has more data to solve it. Images | Spacex, In Xataka | Spacex had been abruptly canceling for almost two years a starship launch. Until now

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