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HomeArtificial Intelligence and Machine LearningAI Being Employed to Help Clean, Avoid Collisions with Space JunkĀ 

AI Being Employed to Help Clean, Avoid Collisions with Space JunkĀ 

By AI Trends StaffĀ Ā 

AI is at the center of efforts to clean up space junkā€”objects in space that no longer serve a purpose and pose risk of collisions with satellites and spacecraftsā€”from funding from the European Space Agency, to projects involving big tech firms to startup efforts. Here is a review of whatā€™s happening.Ā Ā Ā 

Holger Krag, Head of Space Safety, the European Space Agency

The European Space Operations Centre (ESOC) in Darmstadt, Germany, is operating an AI-driven space debris-dodging system. Team members conduct avoidance maneuvers with one of their 20 low Earth orbit satellites, according to Holger Krag, the Head of Space Safety at the European Space Agency (ESA), as reported recently inĀ Space.com. The comments came at aĀ news conference organized by ESA during the recent 8th European Space Debris Conference held virtually from Darmstadt Germany.Ā 

Close encounters in space are becoming more frequent, requiring a multi-disciplinary team to be on call, 24/7 for days at a time in some cases.Ā Ā Ā 

ā€œEvery collision avoidance maneuver is a nuisance,ā€ stated Krag. ā€œNot only because of fuel consumption, but also because of the preparation that goes into it. We have to book ground-station passes, which costs money, sometimes we even have to switch off the acquisition of scientific data. We have to have an expert team available round the clock.ā€Ā 

Itā€™s not only useless debris making space more crowded; greater numbers of useful small satellites are being launched.Ā Ā 

Companies includingĀ SpaceX,Ā OneWebĀ and Amazon are building mega constellations of thousands of satellites, lofting more spacecraft into orbit in a single month than used to be launched within an entire year a few years ago. This increased space traffic is causing concerns among space debris experts. ESA reported that nearly half of the conjunction alerts currently monitored by the agencyā€™s operators involve small satellites and constellation spacecraft.Ā Ā 

The ESA reached out to the global AI community to help develop a system that could address space debris in a more autonomous way, reducing the burden on experts on the ground.Ā Ā 

ā€œWe made a large historic data set of past conjunction warnings available to a global expert community and tasked them to use AI to predict the evolution of a collision risk of each alert over the three days following the alert,ā€ stated Rolf Densing, Director of ESA Operations, at the news conference.Ā Ā 

ā€œThe results are not yet perfect, but in many cases, AI was able to replicate the decision process and correctly identify in which cases we had to conduct the collision avoidance maneuver,ā€ he reported.Ā 

TimĀ Flohrer, Head of Space Debris Office, ESA

The agency will explore newer approaches to AI development, such as deep learning and neural networks, to improve the accuracy of the algorithms, stated TimĀ Flohrer, the Head of ESAā€™s Space Debris Office, to Space.com.Ā Ā 

ā€œThe standard AI algorithms are trained on huge data sets,ā€Ā FlohrerĀ stated. ā€œBut the cases when we had actually conducted maneuvers are not so many in AI terms. In the next phase, we will look more closely into specialized AI approaches that can work with smaller data sets.ā€Ā Ā 

The AI assistance today is alerting the ground-based teams as they monitor each alert of a potential collision course. The next step would be to add more automation to the execution of avoidance maneuvers, which today need to be undertaken by a human operator.Ā Ā 

ā€œSo far, we have automated everything that would require an expert brain to be awake 24/7 to respond to and follow up the collision alerts,ā€ stated Krag. ā€œMaking the ultimate decision whether to conduct the avoidance maneuver or not is the most complex part to be automated, and we hope to find a solution to this problem within the next few years.ā€Ā 

Europeans Cooperating on a Space Junk Removal SystemĀ Ā 

A new project between IT services firm Fujitsu UK, the University of Glasgow, Amazon Web Services and startupĀ AstroscaleĀ UK aims to better-enable the removal of space junk.Ā Ā 

The project aims to allow a junk removal spacecraft to efficiently select pieces of space debris, and plan a path to intercept it, at a rate much faster than is currently possible, according to an account inĀ Digit.Ā The project came together after a funding boost from the UK Space Agency to research the cleanup of space debris.Ā Ā 

Fujitsu is incorporating its Digital Annealer, an architecture that emulates the qubits of quantum computers in a digital circuit. This enables faster processing at room temperatures, instead of the extremely cold temperatures required today by quantum computers. The Annealer is said to help to determine an ā€œoptimal routeā€ to collect the debris, saving time and, in turn, improving commercial viability.Ā 

ā€œThe University of Glasgow has been involved in this project from the very outsetā€”developing the trajectory models needed to effectively remove space debris, as well as estimating the cost of the transfers,ā€ stated Dr. MatteoĀ Ceriotti, a Glasgow Uni Space Systems Engineering Lecturer. ā€œThe university has a long history of expertise in space trajectory design and optimization. We were keen to be at the forefront.ā€Ā Ā 

As part of the project led by Fujitsu,Ā Scottish startupĀ SkyroraĀ is developing a ā€˜space tugā€™ to help clean up space junk The Orbit Transfer Vehicle aims to clear debris and remove defunct satellites from orbit. Based in Edinburgh,Ā SkyroraĀ was founded in 2017.Ā Ā 

Ellen Devereux, Digital Annealer Consultant at Fujitsu UK & Ireland, stated, ā€œWhat we have learned over the course of the last six months, is that this technology has huge implications for optimization in space; not only when it comes to cleaning up debris, but also in-orbit servicing and more. Now we better understand its potential, we canā€™t wait to see the technology applied during a future mission.ā€Ā Ā 

Robot Space Cleaners on the Drawing BoardsĀ Ā 

TheĀ  ESA has contracted with the Swiss startupĀ ClearSpaceĀ to develop a robot space cleaner that would ā€˜snareā€™ large items of space debris and move them closer to the Earthā€™s atmosphere, where they would burn up, according to an account inĀ CityAM.Ā Ā 

ClearSpaceĀ recently closed onĀ $4.3 million in funding from multiple investors for the project, called ClearSpace-1, with a mission scheduled for 2025.Ā Ā 

ā€œThis is a decisive step in a great adventure, and we are very happy to be able to count on the support of such great partners,ā€ stated Luc Piguet,Ā cofounderĀ and CEO ofĀ ClearSpace,Ā in aĀ press release.Ā Ā 

Res Witschi, delegate for sustainable digitization for Swisscom, one of the investors, stated, ā€œWe are convinced that space debris removal plays a crucial role in enabling sustainable access to space and operations of satellite constellations. We are proud to be supportingĀ ClearSpaceĀ on its journey to enable sustainable space operations.ā€Ā 

Spacecraft engineer Fabrizio Boer outlined in aĀ CityAMĀ account he authored ideas for a spacecraft that would use AI to track and search for space junk, and pull it into itself where it would be destroyed. The Space Debris-fed Spacecraft (DefeS), as it would be named, would ā€˜swallowā€™ space junk into an incinerator where it would be vaporized by several robotic-arm-driven lasers. The vapor produced would be used to power the spacecraft thrust.Ā 

ā€œThe concept of creating a laboratory within an autonomous AI-powered spacecraft, where a laser can be used safely, is novel,ā€ stated Boer, adding, ā€œArtificial intelligence must drive the operations if continuous debris removal is going to succeed.ā€œĀ Ā 

Read the source articles and information inĀ Space.com,Ā inĀ Digit, in aĀ press releaseĀ fromĀ ClearSpaceĀ andĀ inĀ CityAM.Ā 

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