A huge blue spiral appeared in the sky of Europe at 9 at night. It was the wake of a spacex rocket

It is hard to believe, but the last night were not aliens either. If you were looking at the sky at 20:55, European central time, you could see a bright blue spiral illuminating the night. It was a Spacex rocket. A strange show. In United Kingdom, Belgium, Poland either Ukraine. From The clean skies of Sierra Nevadain Granada. Virtually all of Europe has managed to capture the spiral light that crossed the sky last night. They soon appeared photos on social networks. People asked what that strange phenomenon was. It is not a usual show, although it has already been seen in Hawaii, Alaska either Iceland. A Falcon 9 of Spacex. Neither a missile, nor a satellite, nor a galaxy about to swallow us. Nor a UFO. The object had a name and surname because it was a Falcon 9 rocket of Spacex by recentrating in the earth’s atmosphere. He had taken off from Cabo Cañaveral, east of the United States, two hours before. The Spy Nrol-69 satellite of the American National Recognition Office (NRO) had put in orbit. And he was returning to the earth to disintegrate in the atmosphere in a controlled way. What caused the spiral. Before a controlled reentry, the 13.8 -meter length rocket rotates to get rid of the fuel that is still in its deposits; A process called passivity. The low temperatures instantly froze the propellants released by the rocket, which added to the turn movement and the position of the sun caused the light show over Europe. The turn is what made it look like a spiral, and the sunlight was what illuminated the frozen wake. Nothing to do with the incident of Poland. In February, the second stage of a Falcon 9 rented without control over Europe. Several pieces of the rocket fell into populated areas of Poland, without causing damage (except the dismissal of the president of the Polish Space Agencyfor its management of the incident). In this case, and as is usually the case, the second stage of Falcon 9 successfully turned on its engine to fall controlled in the atmosphere, far from populated areas. They were the light conditions and the flight profile that made its wake visible in the European night sky, without further consequences than the scare of some European spectators. Images | Jay in Kyiv, High Calar Observatory In Xataka | Elon Musk has revealed the plan after Starship explosions: v3 earlier than expected, but with half a capacity

Emirates has fallen in love with shows with drones. It already moves millions of dollars and aims to have no rival in the sky

More than a decade ago It was held next to the Danube Riverin Austria, the first show of drones of which you have registration. It was during a local music festival, with Few flying devices But with a huge technical deployment. Since then, this type of exhibitions has not stopped evolving. Today, drones have become an increasingly popular alternative to fireworks. The United States and China have taken the lead with mass shows, but the United Arab Emirates want to take the proposal a step further. And are willing to strive to achieve it. Emirates wants to lead the future of shows in heaven Talking about Arab Emirates is talking about a country accustomed to megaprojects. From the Burj Khalifa to the artificial island Palm Jumeirahgoing through The future tower with the highest watch in the worldtheir ambitions do not know limits. Behind this deployment there is a clear strategy: diversify the economy and reduce oil dependence. One of the last steps in that direction is to turn Abu Dhabi into a cultural and technological pole. Sheikh Khaled Bin Mohamed al Nahyan has opted for an unpublished show: The largest exhibition of drones in the world. The objective is to launch more than 10,000 illuminated drones, coordinated in real time to form three -dimensional images. The challenge is not less. Until now, few have managed to operate such a number of drones simultaneously. The record is held by Shenzhenin China, With 10,197 devices in 2024in a sample that beat two Guinness records. The United States has also advanced, With exhibitions of up to 5,000 drones in Texas. Although Abu Dhabi has not yet confirmed the date of the ambitious event, it is known that it will be in charge of Nova Sky Stories (a Colorado firm) with Analog, a Emiratí company specialized in mixed reality and physical intelligence. Arab Emirates was a pioneer in adopting this technology, and the shows began to gain popularity in 2020. Today they are a usual part of great conferences and festivals. According to Rest of Worldan average show in the region costs some $ 112,000 and implies around 400 drones, well above what a traditional fireworks show costs, which is around $ 13,000 and $ 41,000. The global market is also taking off. In 2023 it was valued at 338.9 Millions of dollarswith the Middle East representing 41 million. And, from what we have seen, there is still a generous margin of growth. The AI ​​is already changing the way these shows are designed. Skyvertise, one of the most active companies in Emirates, explains that algorithms allow reducing manual labor time to Automize much of visual planning. The future of air entertainment is changing, and the Emirates want to be in charge. Images | Cyberdrone Drone Show In Xataka | Emirates financed a study to know if it can cause rain in the desert with solar farms. The answer is yes

Sky Shield and its 120 combat planes

On that chess board that has become the Ukraine conflict into geopolitical key, it touches it, and how, to move to Europe. After the United States decision of cut military support (including intelligence) to Ukraine against Russian aggression, the old continent He has talked about “Rearme”but in the last hours a plan that It started in 2022 and that has never come to materialize. In essence, Europe seeks to activate a shield in the sky. Shield the Ukrainian sky. The current situation in Ukraine has led several military experts to present an update of the Sky Shield Planan air defense initiative led by Europe that seeks display 120 combat planes to protect Kyiv and the west of the country. Unlike NATO’s direct intervention, this proposal would work independently and be aimed at stopping Russian missile attacks and drones, without involving the battle front or east of Ukraine. In this way, the implementation of the protection system would cover critical infrastructure, such as the three operational nuclear plants of Ukraine, as well as the strategic cities of Odessa and Lviv. According to A recent report That has been made public, the strategy could be more effective in military, political and socio -economic terms than the deployment of 10,000 European soldiers on the field. What is Sky Shield. Originally known as European Sky Shield Initiative (ESSI)it is an ambitious antimile defense system plan that seeks to create a protective shield on the continent, one Similar to Iron Dome Israeli. Founded in 2022 after the Russian invasion of Ukraine, it currently has 21 member countries, including the United Kingdom, Netherlands, Poland, Greece and Finland, which have agreed to cooperate in the acquisition, maintenance and use of defense systems. The idea has always been for the project to be integrated into the pre -existing Missions of NATO, always as a objective to protect the allied territory against aerial threats and missile attacks. In fact, its design contemplates three levels of defense: Short range (up to 15 km away and 6 km altitude) Half range (15-50 km away and up to 25 km altitude) Long range (more than 50 km away and up to 35 km altitude) Sky Shield’s key components. Originally, the plan combines various defense technologies Air from different manufacturers, both European and American. First, the Arrow 3 system long -range developed jointly by Israel Aerospace Industries (IAI) and Boeing (United States). Its characteristics: intercept long -range ballistic missiles before they reach their target, operated totally automatically and designed to intercept threats to great altitude and hundreds of kilometers away. Then you have the Skyranger System 30 short -range developed by Germany. It is a defense turret, a mobile system that detects and neutralizes air and land threats. The third leg is the Missile Earth-Aire Iris-T-SLM half range. Manufactured by Diehl Defense (Germany), it uses infrared technology to intercept attacks and, in fact, Ukraine has used this system since 2022, which has demonstrated its effectiveness in combat. Finally, The well -known patriot long range. Developed by Raytheon, it is a system widely used in Europe, so much that NATO signed a contract for 5.6 billion euros to acquire 1,000 Patriot missiles shared between Germany, Netherlands, Romania and Spain. Resurgence of the plan. And so we get to this week. Although the idea of ​​an aerial exclusion zone has been discussed since the Russian invasion, until now concrete progress has been made. However, the recent tense meeting between Ukrainian President Zelenskyy and his American counterpart has caused a turn in the European position. The Interruption of military aid flow and the restriction of Intelligence exchange On the part of the United States they have forced Europe to take a more active role in the defense of Ukraine and in the construction of long -term security guarantees. The Guardian told that among the main drivers of Sky Shield High profile figures in European defense are found, such as Philip Breedlove, a supreme excomandant of NATO in Europe, Sir Richard Shirreff, former general of the British and former deputy army of NATO, and Aleksander Kwaśniewski, former president of Poland. The former Foreign Minister of Lithuania, Gabrielius Landsbergis, has also joined that this plan represents an essential step for Europe to assume a leadership role in Ukrainian security. Risk of climbing and challenges. Yes ok The proposal It has been presented to various European defense ministries, so far there has been no clear response to authorize aerial patrols about Ukraine. The main concern in the West lies in the risk of climbing from the conflict to something much larger, since the deployment of European combat aircraft could result in direct confrontations with Russia if any aircraft were demolished. However, Plan defenders argue that the risk is minimal, since Moscow has avoided operating combat planes beyond the front line Since the beginning of 2022, which would maintain a distance of separation greater than 200 kilometers between European fighters and Russian forces. In that sense, the plan would not only reinforce the air security of Ukraine, but also would decongest your defense systems Antialea, currently overloaded and armament dependent manufactured in the United States such as Patriot interceptors, whose refueling has been suspended after the new restrictions of the White House. Reinforce the Ukrainian defense. The urgency of a Solution as Sky Shield It becomes evident with the recent Russian attacks. An example: in just one day, Russia launched 181 drones and four missileswhich, although they were mostly intercepted, caused the death of at least one person in Odesa and damaged infrastructure in the region. Ukraine has responded with long -range attacks through ATACMS missiles Americans and Storm Shadow Anglo-Frenchhitting objectives in Russian territory, including military refineries and facilities. Attacks and defenses that will become impossible over time without the help of the United States. Guarantee security (world). So things, with American support in question And a conflict that does not give signs of resolving soon, Europe faces the need to assume a more decisive role in the … Read more

For five years we have tried to decipher a television signal that came from the sky. The mystery has been resolved

The news for the year in the cosmos has a name and surname: 2024 YR4, that asteroid whose probabilities of impact on Earth do nothing but up. But thousands of kilometers from our planet continue to happen fascinating events. Without going very far, X -ray telescopes have just revealed A superstructure of more than one billion light years. There are more, because for five years astronomers had been looking for a response to a television signal that came from space. The enigma has just been resolved. The mystery of the signals. For five years, astronomers who analyzed the data of the Murchison Widefield Array radio in Western Australia found an unexpected enigma: A television signal from heaven. Since the telescope is located in A radioelectric silence zone Designated to avoid human interference in radioastronomy, the detection of said signal was particularly disconcerting for the community. Even more strange was the fact that the signal It seemed to move through the skywhich led to all kinds of speculation about possible reflections of our own transmissions until, of course, theories about extraterrestrial activity. The answer, as almost always, It was something simpler. The discovery: airplanes. Apparently, the turning point came when Jonathan Poly, physicist at Brown University and leader of the United States research team, He had a revelation: “We said: ‘I bet the signal is being reflected in a plane’”. While this hypothesis had already raised before, no one had confirmed it with certainty. To check it, the equipment used advanced signal processing techniques, as close field corrections and beam formationwith which they managed to better focus close sources of interference. What happened? That the analysis revealed that The reflected signal corresponded to the Channel 7 frequency bandan Australian digital television station. Perhaps more important than that, the calculations on the altitude and speed of the reflective object indicated that It was a plane in full phase of cruiseflying at 11.7 kilometers of altitude at a speed of 792 km/h, data that coincide with the usual characteristics of a commercial flight. A problem for astronomy. As indicated in your recently published studythis type of interference represents a serious problem for astronomers, since Contamin the data and can force the elimination of large amounts of valuable information. According to Jade Chucharmefrom Brown University, “It’s like trying to listen to a friend whispering on the other side of the table while a child screams in your ear.” In this way, every time a television signal is reflected in a plane, It overlaps cosmic waves That astronomers seek to analyze, which can make large sets of observations must be ruled out. Not just that. As they underline, the team’s discovery is key to Develop interference elimination methodswhich will allow filtering these reflexes without losing important astronomical information. However, the problem is not limited to airplanes: satellites in orbit represent an even greater threat. Are we too loud on earth for astronomy? It is the big question that slides from the finding. The number of satellites in orbit It is still increasingwhich aggravates the problem of radio interference. Although scientists are improving data filtering techniques, some begin to question whether planet Earth himself remains adequate place for radioastronomy. According to poor“If we cannot find a silent sky on earth, maybe the earth is no longer the indicated place.” Be that as it may, some astronomers have begun to consider The possibility of moving radioastronomy to spacewith projects that propose the installation of telescopes in the hidden face of the moon, where the terrestrial interference would be minimal. In that sense, the discovery of Poly and his team not only solves a five -year mystery, but also marks a crucial step for the preservation of radioastronomy in an era where electromagnetic pollution is a growing problem. With the advancement of technology, the struggle between the exploration of the cosmos and the signs generated by the human being could define the future of astronomy. Unfortunately for believers, no one was watching TV in space. Image | Pexels, Nara In Xataka | X -ray telescopes have revealed an unimaginable object: a superstructure of more than one billion light years In Xataka | The impact probability of asteroid 2024 YR4 has risen to 3.1% (1 of 32): why the UN waiting for May to act

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