In 2024 an asteroid loaded with precious metals psó touching us. The goal is now to hunt the next one with a giant bag

A year ago, astronomers saw how an asteroid entered the orbit of our planet and accompanied us for almost two months. This “mini-luna” baptized as 2024 PT5 was a warning sign for an industry that never ends up detachment: space mining. The passage of the rock full of rare metals lit the fuse of a new race to not let the next one. The new objective of space mining. The idea that asteroids are floating treasures is not new. According to NASA’s calculationsthe metals contained in the asteroid belt could be equivalent to 100 million dollars for each person on Earth. The problem has always been the same: the prohibitive cost of reaching them. But this type of “mini-lunas” like 2024 PT5, that we are able to detect with current technologythe rules of the game change when approaching us, becoming much more affordable objectives. The Plan: Not Atrices, capture. Landing in an asteroid is a logistics nightmare. They turn at high speed, do not have a significant seriousness that maintains an anchored ship and are covered with a powder that would stuck any machinery. Therefore, the new strategy is not to perch on them, but to capture them in full flight. This is where concepts that seem taken from a science fiction film come into play. Companies like the Tethers Unlimited disappeared They worked on satellite designs capable of launching a gigantic network to catch an asteroid and tow it to a stable orbit. The company failed, but its idea prevails: stop the rotation of asteroids to process them. NASA to hunt asteroids. One of the companies that leads this race was founded by a veteran of the Jet Propulsion Laboratory of La NASA, Joel Sercel. The plan of Transaster It is a three -phase technological deployment: Detect: its Sutter telescope system has been designed to find small, dark and fast objects, such as asteroids close to the earth that until now went unnoticed. Capture: His proposal is called Capture Bag, and is a kind of giant inflatable bag designed to completely wrap the asteroid. Process: Once trapped, they would use a technology called optical mining. It consists of using concentrated sunlight with a kind of magnifying glass on an industrial scale to heat the asteroid. This allows you to extract water (in the form of ice) and separate precious metals such as platinum, cobalt or nickel. Precious metals … and precious water. Although metals are the fat prize, the most valuable short -term resource is water. As Joel Serce explains In an interview for Caltechwater is the “oil” of the solar system. It can be broken down into hydrogen and oxygen to create rocket fuel. Extract water from an asteroid and store it in orbit would create the first “space gas stations”. Being quantifies it: 100 tons of water extracted from an asteroid the size of a house, enough to fill a pool, they would have an approximate value of 1,000 million dollars in space. Simply because of the cost that would mean throwing so much water from the earth. To move these loads, Transastra is developing a fleet of tugs called worker bee whose engines can use that water as propellant. Waiting for the next mini-luna. The passage of 2024 PT5 was a lost opportunity. “If we had had our systems in operation, we could have gone for it,” he confessed to being. The industry was not ready, but the starting gun has already sounded. The next time a cosmic treasure approaches the earth, there may be giant networks or bags waiting for it. The 21st century gold fever does not look underground, but towards the stars. Image | NASA, JPL In Xataka | The Earth has lost its miniluna, but posed for a photo before leaving (and promised to return soon)

NOAA detected metals in the atmosphere mainly associated with Spacex. The White House has liquidated its research

The United States Government has just truncated One of the most intriguing research on spatial pollution. A decision that, according to some suspicious voices, is beneficial for the commercial interests of Elon Musk. The latest Trump. In the absence of budgets being approved in Congress, the White House seeks to eliminate the financing of two key research projects on contamination caused by rockets and satellites. The plan is part of the drastic cuts that, along with NASAhas suffered the scientific arm of the National Office of Oceanic and Atmospheric Research of the United States: the NOAA. A striking finding. At the end of 2023, US atmospheric researchers discovered a growing accumulation of metals in the stratosphere. A team led by NOAA analyzed the sulfuric acid particles sampled by the NASA WB-57 plane on flights of great altitude over Alaska and the western media. He study He identified more than 20 different elements, including lithium, aluminum, copper and other more exotic metals, such as niobium and hafnium. These materials are not found naturally in the atmosphere. They are linked to the space industry, and therefore, they were associated with the increasingly frequent redeeme of rockets and satellites, which vaporize exorbiting. The scope of the problem is still unknown. It is feared, for example, that an exponential increase can damage the ozone layer, which acts as a shield against ultraviolet rays, further destabilizing the climate. Goodbye to research. NOAA’s efforts to solve these doubts were already underway. On the one hand, a continuity study to take new atmospheric samples. On the other, a workshop in which the private industry participated to explore possible solutions. Both remain without federal financing with the cuts, which will force them to cancel them if the budgets are approved. Although the White House has proposed all kinds of science cuts, the PUBLUEPLOYEES FOR ENVIRONMENTAL RESPONSIBILITY Organization spokesman said The Guardian That in this case “there is a political motivation”, relating NOAA’s work with the commercial interests of Elon Musk. The Spacex factor. There had never been so many satellite releases because there had never been a rocket capable of landing on their legs. Elon Musk’s aerospace company puts more than 80% of the payload launched to space, in terms of mass. Almost all are satellites of the Starlink constellation, which has become a strategic asset for the United States. Spacex has launched about 8,400 Starlink satellitesof which 1,080 have already reentred. Although Starlink is the largest constellation, other companies have similar plans to launch tens of thousands of satellites to the low terrestrial orbit; Among them, several Chinese startup and the Amazon technological giant, with its satellite internet project Kuiper. In total, the number of satellites in orbit could grow up to 100,000 in the coming years. And with it, the number of atmospheric reentradas. And so every five years. Spacex satellites and the incipient Kuiper constellation orbit the land less than 600 km altitude. Due to the effect of atmospheric braking, they reduce their height and end up burning in the atmosphere five years after its launch. Also the rockets, including the upper stage of Falcon 9, exorbitita to disintegrate in the atmosphere. This is the desirable: that the Space garbage “recycle” in the shortest possible time. But the cadence of launches, headed by Starlink, is producing several resentments per day, that will soon become dozenand then in hundreds. The effect of these daily metal injections in the atmosphere is something that other countries will now have to investigate, at least with public funds. Image | Caribbean Astronomy Society In Xataka | Spacex rockets are opening red holes in the atmosphere. They call them “Spacex Auroras”

Thanks to this table we can finally understand how metals compatibility works

Materials science is an exciting discipline. It is likely that some people seem unattractive, and it is a respectable opinion, but objectively it is about A very important scientific branch. Its purpose is to study the structure, physicochemical properties and the behavior of the elements with the purpose of Design new materials which can be used in a very wide range of industries. The kevlar used in The bulletproof vests and the diaphragm of some speakers, among other applications; the carbon fiber used in the aeronautical, automobile and sports industries; high performance alloys used, for example, in nuclear reactors and The turbines of the aircraft; or the Carbon nanotubes which are already being used in some electronic devices support the relevance of the science of materials currently. Rufosity matters. And a lot One of the properties that usually study material engineers is roughness. This characteristic identifies often imperceptible irregularities that reside on the surface of a material. To measure them, it is usually necessary to carry out a microscopic analysis, but the really important thing is that this knowledge allows researchers to design and manufacture new components. And it is that roughness is an essential parameter that conditions the performance, durability and applications in which a new material can be used. In fact, there are research groups and companies that are dedicated in body and soul to characterize new materials and measure their roughness. Michigan Metrology It is one of these companies. It resides, as we can intuit, in the state of Michigan (USA), and expressly dedicates itself to measurement, analysis and inspection of roughness and wear of surfaces. To carry out their analysis, it resorts to very sophisticated teams that are capable of precisely identifying the irregularities present on the surface of the materials through a three -dimensional exploration. The table we publish on top of these lines has been prepared by the American mechanical engineer Ernest Rabinowicz, and is the Bible for Michigan Metrology and other companies that are dedicated to material engineering. In fact, it is the authentic protagonist of this article. And it is because it gives us a lot of information about the roughness and sliding compatibility of a good part of the metals that we can find in the periodic table of the chemical elements. Two pieces work better together if they are metallurgically incompatible, or, what is the same, if the metals involved are not dissoluble with each other As you can see, Rabinowicz occurred to be placed on the horizontal and vertical axes of the table the symbol that identifies each metal. And at the intersection between each pair of them appears A very illustrative symbol that identifies whether these two metals are incompatible, partially incompatible, partially compatible, compatible or identical taking as reference their roughness. In the field of metallurgy this information is very valuable. And it is because metals that are compatible from a metallurgical point of view tend to adhere to each other, a process that increases friction and wear. As we can intuit, knowing precisely the degree of compatibility between each couple of metals is fundamental in the design of the sliding interface between two metal pieces. In fact, two of these pieces work better together if they are metallurgically incompatible, or, what is the same, if the metals involved are not dissoluble with each other. Image | Kaboomps.com More information | Construction Physics In Xataka | Copper has reigned in the chips industry for decades. It already has an unbeatable substitute: Ruthenium

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