space

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

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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.

The most ambitious US military project in space has a new owner: SpaceX

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The United States Government has hired SpaceX to act as the backbone of its military telecommunications system. After several delays of an initial system, based on the participation of multiple companies and entities, it has now been decided to bet all data transport on Elon Musk’s request. Starshield satellites. Although the technical details have not been announced at the moment, this agreement between the Pentagon and SpaceX is possibly based mainly on the contracting of Starshield services, satellites with technology similar to that of Starlink, but adapted to military applications. The space company It already has hundreds of these satellites in low Earth orbit, some of them involved in actions such as attacks on Iran. A system made up of layers. The hiring of SpaceX, in which 2.29 billion dollars have been invested, is aimed at the development of the backbone. That is, the central layer of the data transport system used by the United States for military purposes. This system consists of more layers, in which more companies will intervene, which will be in charge, for example, of tracking. However, everything revolves around the axis constituted by Elon Musk’s satellites. The functions. With all these contracts, the United States intends to facilitate the tactical communications of the US Army thanks to access to broadband communication services worldwide. In addition, the aim is to work on the detection and tracking of missile launches and, in turn, connect sensors and shooters. In short, SpaceX must provide the backbone of a system composed of sensors that detect possible threats and a network that communicates these threats as quickly as possible to anti-missile systems and shooters so that they act accordingly. Other companies. While SpaceX will focus on data transportation and the cohesion of all actors involved in the United States military plan, other companies will be in charge of tracking. In recent years, the Space Development Agency hired for it to L3Harris Technologies, Lockheed Martin, Northrop Grumman and Rocket Lab, all companies that have already begun developing satellites for this purpose. On the other hand, the last three, together with York Space Systems, they had been hired also for transportation purposes, similar to those that have finally been entrusted to SpaceX. At the moment it does not seem that the development of its own satellites has been cancelled, but the change in strategy, much more focused on SpaceX, is clear. Concerned legislators. Despite the intervention of other companies, legislators have expressed concern about the decision to put all the transportation and telecommunications eggs in Elon Musk’s basket. Given this situation, the spokesperson for the United States Space Force has assured who are already looking for a second contractor to build Space Data Network satellites. At the moment it is only SpaceX’s task, but they intend to increase competition. SpaceX’s duties. As they point out from Ars TechnicaElon Musk’s company is obliged to deliver a “prototype of fully operational capacity” for its telecommunications system before the end of 2027. With this, SpaceX diversifies its work, entering fully into the military field. Is this surprising? The truth is, not too much. Now all that remains is to see how it swims in these waters in which He had already made his first dives. Image | US Space Force photo by Gwendolyn Kurzen/Diego González (Unsplash) In Xataka | Once again, Ukraine has opened a missile launched by Russia. Once again, surprising manufacturers have been found

Tomorrow the spin-off of one of the best space uchronias of recent years arrives, and it comes with an unexpected twist

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On May 29 Apple TV+ does two things at the same time: closes the fifth season of ‘For All Mankind’ and premieres its spin-off, ‘city ​​of stars‘, from its own creators. The original series has been telling the alternative space race from Houston for seven years, and the new project contemplates it from Moscow, within the Soviet space program that in this uchronic universe reached the Moon first. ‘For All Mankind’ started in 2019 with a simple premise: what would have happened if the Soviets had put a man on the Moon before the Americans? The series This parallel vision has been escalating until it lands on Mars and extends beyond, accumulating five installments and a sixth (already confirmed as the final one) that will close the complete narrative arc. ‘Star City’ is a prequel that returns to the seventies, to the founding moment of that alternative universe, but with the perspective reversed. Where ‘For All Humanity’ assumed the Soviet triumph as a starting point and contemplated it from the United States, the spin-off is installed within the USSR space program: laboratories, cosmonaut barracks, corridors guarded by the KGB… An excellent setting for a proposal maintained by the team from the last seasons of its predecessor, among which stands out Ronald D. Moore, screenwriter remembered for ‘Galactica’, ‘Star Trek: The Next Generation’ and ‘Deep Space Nine’. The cast is led by Rhys Ifans in a role inspired by the Soviet engineer Sergei Korolev (who died in 1966 but survived in this universe and took the space program to unknown heights). And the tone of this ‘City of Stars’ clearly diverges from that of its mother series: if in ‘For All Mankind’ we had a humanist drama of space adventure, here we go to the espionage thriller also inspired by the real Soviet project, where ships less reliable than those of the Americans, deaths hidden from the outside and the presence of the KGB in mission control itself met. In Xataka | Today on Prime Video, a series with a superb Nicolas Cage that is already said to be Marvel’s best proposal in years

NASA has looked at Torrevieja from space and has seen a huge mass of pink water essential to finding life on Mars

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From space everything looks different. In fact, distance allows us to distinguish strange shapes, such as the Great Dam of Zimbabwe or the eye of the saharabut also colors that go more unnoticed at ground level. Thus, on June 7, 2021, an Expedition 65 astronaut aboard the International Space Station pointed his camera toward the southeast of Spain and took a photograph that looks like a watercolor: Mediterranean blue, a muted green and an intense pink reminiscent of quartz. The color palette is finished off by the white reflection of the sun. The three colors correspond to bodies of water a few kilometers from each other, in Alicante: the Mediterranean, and the saline lagoons of La Mata and Torrevieja. What seems like an aesthetic coincidence is actually chemistry visible from orbit. Each tone reveals something: the degree of salinity, which microorganisms dominate the water, and in what fragile balance they coexist. The lagoons of La Mata and Torrevieja. The Torrevieja lagoon has been used as a salt mine since the 13th century and today are the largest salt producer in Europe, with an average of 650,000 tons per year, a figure that varies depending on solar radiation, wind and precipitation. It does not function as a natural lagoon, but as an industrial system where water moves according to production needs. The La Mata lagoon acts as a prior concentration chamber: receive sea ​​water through artificial channels and runoff from intermittent streams of the Sierra de San Miguel de Salinas. From there, the water is pumped to the Torrevieja salt mine, where brine from the Pinoso salt diapir through a 55 kilometer pipeline. The result is that the concentration of salt in the Torrevieja lagoon can overcome 260 grams of salt per liter, much more than the 38.5 g/liter Mediterranean that bathes its coast. Two adjacent lagoons but with completely different chemical worlds. Why do they have such different colors?. Each time water of different composition is pumped to produce salt, the chemistry of the system is altered, which determines What organisms can live and in what quantity. Two lagoons a kilometer apart, two different microbial communities and two opposite colors. The pink color of the Torrevieja lagoon is produced by microorganisms. More specifically, in conditions of high salinity and intense solar radiation, the microalgae Dunaliella salina accumulates β-carotene as protection against light. The halophilic archaea that share the lake reinforce that tone: they have red pigments distributed throughout their cell membrane, which makes them visually more decisive in the final color of the water. In La Mata, the lower concentration of salt favors a different microbiota where chlorophyll predominates over carotenoids: that explains the green color. Context. The salinity gradient between both lagoons goes beyond chemistry: it is what allows a different and exceptional biodiversity. The wetland houses up to 400 taxaten species of threatened birds and one of the most important Audouin’s gull breeding colonies in the Mediterranean. Without that difference in salinity, many of those ecological niches would disappear. The NASA image is also more than a photograph: it portrays the fragile balance between industry, microbiology and conservation that climate change is already testing as temperatures rise and salinity fluctuations alter the living conditions of Dunaliella salinaor what is the same, that that striking pink color seen from space could disappear. Why is it important. Dunaliella salina is the organism that supports the base of the food chain in hypersaline lakes around the world. Since 1966 it has been grown commercially to produce β-carotene, which has applications in pharmacology and cosmetics. But it is also an organism that NASA has on the radar because it constitutes a form of life in extreme conditions. It should be remembered that the data from the Perseverance rover indicates that there were hypersaline waters in the Jezero crater of Mars. Studying life in these types of lakes helps understand the potential in these old Martian lakes. What makes Torrevieja pink is the best laboratory we have to know what to look for on another planet. In Xataka | 60 years ago, NASA took a look at the Sahara from space and found a very strange “perfect eye” In Xataka | Europe has been watching Colombia for a decade from space and what it has seen is a tragedy: the death of a glacier Cover | POT

has to dodge space junk and is leaving blind spots on the map

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Imagine that there was a satellite capable of detect fires shortly after the first spark. Even before calls to emergency services begin. Imagine now that the maps drawn thanks to that satellite suddenly begin to have unexpected gaps. Blind spots where fires can spread freely. It would be tragic, right? Without a doubt, although the truth is that it would not be. It is. This story is totally true and the worst thing is that the reason these blind spots exist is because the satellite has to move over and over again to avoid the space debris that experts have been warning us about for so long. The collateral damage of anti-debris maneuvers. NASA’s Aqua satellite has an instrument called MODIS, which has the ability to detect hot spots and smoke by measuring infrared radiation. These heat and smoke points are minimal, which is why it is used to detect fires from their earliest stages. Since its launch in 2002, NASA has been using it to create fire maps that allow emergency systems to move more quickly and concisely to the places where the fire is located. It’s not even its function; since, as its name indicates, it is a satellite centered on water. However, this side effect has helped save many lives and many acres of land. Unfortunately, every time he moves to avoid incoming space debris he has to let his guard down, with very worrying consequences. One of three. Aqua is one of the three satellites that make up the NASA Earth Observing System (EOS). The other two are Terra and Aura. Their names already give us a clue as to what their function is. Basically, they do a comprehensive survey of the Earth by land, water and air. Terra was first launched in 1999. It is responsible for analyzing the interactions between the atmosphere, land, snow, ice and oceans. It can, for example, detect the progress of deforestation. Then, in 2002, Aqua was launched. Its functions are the analysis of ocean evaporation, atmospheric water vapor, clouds, precipitation, soil moisture, ice and snow. In fact, its MODIS instrument was designed to analyze data related to the water cycle, but it turned out to be an ideal fire detector. Finally, in 2004 Aura was launched, which analyzes the chemistry of the atmosphere, the state of the ozone layer and air quality. The problem comes in 2005. Space debris has been growing in abundance in the last 20 years. Above all, there is a lot of debris in low Earth orbit, since there is a greater gravitational influence there and these are retained. Both Aqua, Terra and Aura are in that same orbit, to be able to carry out their work close to their objectives. Therefore, they are increasingly at risk of being hit by space debris. In fact, since 2005 is calculated who have had to deviate at least 32 times to avoid these impacts. The consequences. These detours prevent them from being able to properly carry out their functions, but they also cost a lot of extra fuel. All of these satellites are having a longer lifespan than expected. However, precisely because of these maneuvers they are using more fuel than expected, so they may stop working next year or the following year. More satellites. Luckily, there are more satellites in space dedicated to detecting fires. NASA itself has several. However, Aqua is one of those that has given the best results. Furthermore, now a call has been made about the risk to the three EOS satellites, but there are many more, from many space agencies and companies, that are in danger from space debris. And the worst thing is that this has only just begun. The European Space Agency (ESA) is following up of more than 50,000 pieces of space debris in orbit, but there are possibly many more. In fact, if we look at smaller objects, between 1 centimeter and 10 centimeters, the figure rises to 1.2 million detected objects. In 2005, 16,000 objects were being tracked, so the numbers have increased greatly. Kessler syndrome. One of the biggest risks from space debris is Kessler syndrome. This is a phenomenon which would occur when fragments of space debris impact satellites, breaking them and releasing more pieces that in turn become more space debris and continue impacting other satellites. It’s kind of like a domino effect. If this happens, the consequences can be many and none of them good. It may take a while for us to be aware of the magnitude of the problem. Therefore, the example of fire hunters is very illustrative. Without them, the planet is in serious danger. The consequences of an impact in space, or even maneuvers to avoid it, also have a full impact here on Earth. You have to do everything possible to avoid it.. Images | NASA/Matt Palmer (Unsplash) In Xataka | If the question is how to protect the mountain from fires, in Soria they have an ancient solution: luck of pines

Without gas stations in space we will not reach Mars. NASA knows this and is finally doing something about it

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Much of a spacecraft’s fuel is consumed in maneuvers to leave Earth’s orbit. For this reason, as manned missions move further away from our planet, we must begin to think about use space gas stations. These are not fuel pumps floating in space, but satellites, or even ships, capable of transferring fuel to a ship that needs it to travel further. At the moment, this is one of the weak points of many missions, so it is important to start working on technologies that allow it. At NASA they are very aware of this problem, hence this year they are going to launch LOXSATa mission that will test 11 different technologies to guarantee the transfer of propellants. 9 months ahead. LOXSAT is a NASA mission in collaboration with the company Eta Space. The objective of this mission is to test different cryogenic fluid management technologies so that in the future propellant tanks can be created in space. The mission will remain in low Earth orbit for 9 months. Meanwhile, 11 technologies will be tested focused on achieving four objectives: reducing boiling, improving propellant transfer, maintaining stable pressure and measuring propellant levels. The big problem. Cryogenic propellants, such as liquid oxygen at extremely low temperatures, are very efficient, but they have a major disadvantage. And in microgravity conditions, when the transfer between ships is carried out, the temperature cannot be kept low enough, so the fuel boils and suddenly transforms into gas. This causes a huge increase in pressure, which can endanger the ships involved. It seems to be that precisely this problem is the one that is giving SpaceX the most headaches. Like Blue Origin, this company must demonstrate its ability to refuel in space to be part of the Artemis missions, but it is not being easy. This is the reason why with LOXSAT methods will be tested to maintain stable pressure and reduce boiling. Space gas stations. The objective of this mission is to perfect the technology so that in the future there can be fixed propellant tanks in space. In other words, they hope that as we colonize space terrain we have gas stations so as not to run out of fuel. China on the heels. Ideally, in the future, large ships could exchange propellant. No space agency has achieved anything like this. However, China has indeed achieved it with satellites, in their Shijian missions. Plus, they did it in a higher orbit, so they are ahead of NASA in the particular race that has been uniting them for so long. Of course, at the moment, China has not tested cryogenic propellants, but tried hydrazine replenishment. There is still room for improvement. Write down the date. The mission will depart aboard an Electron rocket from Rocket Lab. The launch will be in the summer, no earlier than July 17, from New Zealand. Images | POT In Xataka | Jeff Bezos’ space company has overtaken SpaceX in a key milestone to go to the Moon and Mars: zero evaporation

Star Catcher has raised $88 million to build the first space power grid. Their plan is to recharge satellites with lasers

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As the pace of space launches increases and missions beyond Earth become more abundant and varied, it is important to look for new ways to obtain energy so that these ships can travel to their destinations. Fuel is not infinite, so there comes a point where it runs out. Therefore, there are three main proposals. One is to resupply the ships directly in orbit. Another option is to resort to nuclear energy. In fact, There are already several agencies working on it. Finally, there is the option of solar energy. Unfortunately, this has some limitations, but the American company Star Catcher wants to solve them through the world’s first energy network located in space. A good economic injection. Star Catcher just announced which has received 65 million dollars in a series A financing round. With what they already had in their coffers, the company has 88 million dollars. Enough to date its first release to the end of this year. Different ways to “squeeze” the Sun. The solar energy we are used to is obtained through plates with photovoltaic cells installed directly on the Earth. However, there are already companies that want to bring it directly from the Sun, even at night. Its goal is to use mirrors that reflect sunlight at will anywhere on Earth, whatever the time and whether the weather is good or not. The problem is that these companies They are being criticized a lot for posing risks such as great light pollution. On the other hand, what Star Catcher wants to do is slightly different. They will also take solar energy directly into space, but they will not direct it to Earth, but to the spacecraft that need it. It will be like a kind of space solar power plant. Optical beaming. Star Catcher will be based on a phenomenon known as optical beaming. This consists of extracting solar energy and using it to power a multispectral optical laser, with which it will be redirected to satellites from which it can be distributed at will to the ships that need it. To do this, they hope to be able to put a constellation of 200 satellites into low Earth orbit. Previous records. Last year, this company broke the world record for wireless electricity transmission by delivering 1.1 kW of power to NASA’s Kennedy Space Center. Now, they want to transmit directly to space. It also has limitations. Although this company does not have the same limitations as those that want to redirect sunlight to Earth, it involves placing an immense number of satellites in orbit, with the risk that this entails. Many experts warn that, in the same way that could happen with Elon Musk’s Starlink constellation, this type of infrastructure increases the risk of Kessler syndrome. That is, it could happen that one or more fragments of space debris collide with them, deteriorating and launching pieces into space that would become more space debris, which in turn would collide with more satellites or more debris. Thus, a very dangerous domino effect would be generated for satellites, ships and space stations that are in space at that time. Even more risks. On the other hand, the launches of the ships that will place the satellites into orbit are also a great source of pollution. In fact, recently has been published a study that warns of the large amount of polluting substances that these types of launches leave in the upper layers of the atmosphere, where, otherwise, the pollution would be residual. In short, this company will bring us great advances, but it will have to maneuver carefully so as not to bring even more problems. Image | Star Catcher In Xataka | Starlink’s dominance in space begins to move: another company already has permission for a constellation of 4,000 satellites

The joint mission between Europe and China is already in space. The really important thing comes now

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Finally, despite the postponement last April, SMILE has been launched successfully. The mission that unites China and Europe To study how the solar winds interact with the Earth’s magnetosphere, it departed from the Kurú Space Port, in French Guiana, at 03:52 GMT (05:52, Spanish peninsular time). He has at least 3 years of work ahead of him, but before starting his work he must take some preliminary steps. Journey to final orbit. During the first 25 days of the mission, SMILE You must start your engines 11 times. This will allow it to gradually lengthen its orbit around the Earth’s poles, until reaching 121,000 km above the North Pole and 5,000 km above the South Pole. Once in its final orbit, around June 13, it will be time to tune up all its instruments. The final deployment. Remotely, from Earth, mission engineers will check that all SMILE instruments are working properly. For that, some must change their conformation. Specifically, it will be necessary to deploy the magnetometer arm and open the X-ray camera shutter and the UV camera cover. Each of these points is essential for the proper development of the mission. The first images. Once the experiments have been verified, SMILE will begin its work. The first images will be sent to Earth for analysis three months later. The mission. SMILE will study the interaction of solar activity with the shield that the Earth uses to protect itself from it. Although other missions have carried out similar tasks, it will be the first time that global images of this interaction have been taken, both in X-rays and ultraviolet. This will give us better knowledge than we currently have about solar storms and how they affect our planet. And not only They draw us beautiful auroras in the sky. They can also affect telecommunications, sometimes worryingly. It is important to understand them and know how to predict, as far as possible, the harmful effects they could cause. At least three years. The nominal duration of the mission will be 3 years. This means that it is designed to achieve your main objectives in this time. The economic investment of the European and Chinese space agencies has focused on guaranteeing this duration. However, that does not mean that within three years the ship will be deorbited or that all its instruments will be turned off. If it continues to function properly, its useful life could be greatly extended. The case of Cluster. Cluster it was a mission ESA whose objective was also to measure the Earth’s magnetic environment. In a way, it could be considered a predecessor of SMILE. It was launched in 2000 and remained active until 2024. However, Its nominal duration was initially 2 years. Once the retirement date arrived, it was found that Cluster was completely fit, so it was decided to invest in it for much longer. Maybe something similar will happen with SMILE. For now, we will have to go step by step. To begin with, it must reach its operational orbit. Once there, the magic begins. Or rather: science. Image | THAT In Xataka | The Webb and Hubble telescopes simultaneously observed Jupiter’s auroras. The problem is that they didn’t see the same thing

space as a new factory

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Two pharmaceutical companies have teamed up to launch an ambitious plan to synthesize drugs in space. It’s not an expensive hobby. It is more than proven that some medications They have added advantages if they crystallize under microgravity conditions. Until now, the few companies that had done so had worked alone or with the sole support of agencies such as NASA, but the fact that two of them are associated without the need for the space agency to intervene marks what could be the beginning of an era. Better to join forces. The two companies in question are Varda Space Industries and United Therapeutics Corporation. The first, founded by former SpaceX employees, has been synthesizing medicines in space since 2023. The second has never traveled beyond Earth, but it is a biotechnology company with enough potential for the union to be much stronger. The initial objective will be the crystallization in microgravity of drugs for rare lung diseases. However, in the future drugs could be produced for many other pathologies. It all started in 2019. In 2019, the companies Merck Sharp & Dome Corp. (MSD), in collaboration with the National Laboratory of the International Space Station (ISS), carried out experiments crystallization with the drug pembrolizumab (Keytruda). It is an anti-cancer drug that, as is common in chemotherapy, is administered by intravenous infusion, in a process that can last hours. By crystallizing it in space, a more stable form was obtained that allowed its administration in a single injection, making the treatment much more comfortable for patients. a matter of time. It has been seen that, when crystallized under microgravity conditions, many molecules assemble more slowly and constantly. The results are much more stable molecules that, once used as a drug, have a wide variety of advantages. For example, they dissolve better, do not require as much cold for storage, cause fewer side effects, and have a longer shelf life. Varda’s experience. The Varda company began its space pharmacology project in 2023. That year it launched the first of a series of unmanned capsules with chemical reactors into space. In these reactors, molecules crystallize and, after a few weeks or months of work, are returned to Earth. That first capsule was the W-1. W-6 is currently carrying out its mission and is expected to launch at least three more this year. Furthermore, after the merger with another pharmaceutical company, Varda is confident of being able to scale to 7 launches in 2027. Also for research. Molecules that crystallize in space give rise to larger crystals. This also makes your research easier. Therefore, with this type of project the aim is not only to obtain drugs. It is also expected to obtain candidate molecules to become medicines, to be analyzed more thoroughly by scientists on Earth. This is just the beginning. In the future, space travel will be much more widespread. The reuse of rockets will allow many more launches in less time, space tourism will become increasingly common and many public and private investigations can be carried out in orbit. If sufficient investment is achieved, the infrastructure to obtain drugs in space will become increasingly simpler. And, of course, the benefits for patients will also increase. Image | Varda/Magnific In Xataka | We knew that Mars has gravity. Now we have just discovered the unexpected effect it has on the Earth’s climate

Europe and China are at risk in the race for the first gravitational wave observatory in space

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Terrestrial gravitational wave detectors, such as the famous LIGO, have made very interesting discoveries in the last decade. However, there is a great consensus that it would be very useful to detect this cosmic phenomenon directly from space. For this reason, some space agencies are already getting to work to launch their own projects. One of them is the Taiji mission, of the Chinese Academy of Sciences, with which, in fact, a great step forward has just been taken. Everything ready for Taiji 2. The Taiji mission consists of three phases. The first was already launched in 2019. For the second, a piece called the full-function interferometer optical core had to be tested. The tests carried out on Earth have gone perfectlyso it is considered that the second phase could be launched as soon as possible. In fact, its launch It was initially scheduled in 2024but it has been suffering delays. Luckily, it seems that now all the pieces are ready. Three ships in total. The Taiji mission is made up of three ships, strategically placed in space millions of kilometers away. They will all be connected to each other through laser interferometry, so that slight changes in these distances that could be associated with gravitational waves can be detected. The first phase of the mission, in which the interferometry system was analyzed, was launched in 2019. It is expected to send the second part as soon as possible, in which the first two ships will be put into space. As for the third, in principle the established calendar places its launch in the 2030s. Better in space than on Earth. Gravitational waves are waves produced in space-time as a result of a catastrophic event. These types of events could be, for example, the merger of neutron stars or the collision of black holes. When this occurs, space-time experiences a disturbance similar to that produced when a stone is thrown into a pond. Those are gravitational waves. The terrestrial observatories, like LIGOthey can detect them, but they have a small limitation. And there could be confusion with seismic noise and other terrestrial interference. In space, that problem disappears. Taiji to the rescue. According to the tests that have been carried out on Earth and the analyzes of the interferometry system that have already been carried out in space with Taiji-1, this mission is capable of greatly reducing interference. Furthermore, the optical core that has just been tested is capable of detecting disturbances on the order of picometers. That is, on Earth you can discern displacements equivalent to one ten-thousandth of the diameter of a human hair. Although those distances would change under spatial conditions, it is still highly accurate. Therefore, it is expected to detect even gravitational waves caused by intermediate mass black holes. Other similar missions. The European Space Agency It also has its own mission aimed at detecting gravitational waves in space. This is LISAa project with which it is planned to do something similar: launch three ships connected by laser interferometry into space. In this case, the launch of all ships is scheduled for 2035, so China could have some advantage. Of course, until the complete triangle is in space, the mission cannot be considered completed. Perhaps Europe will be able to overtake the Asian country. Image | NOIRLab In Xataka | What happens if you fall into a black hole, explained simply in an overwhelming NASA simulation

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