Field of Natural Sciences

A wide US – Europe network of radio telescopes including observing a faraway radio galaxy discovers a small dark object. It is just a pinch in their data but it signifies that low-mass dark matter clumps are widespread, verifying theories of the Universe’s structure and evolution. The telescopes used include those of VUAS institute “Ventspils International Radio Astronomy Centre” (VIRAC). An international team of astronomers has found a low mass dark object in the distant Universe, not by directly observing any emitted light, but by detecting its tiny gravitational distortion of the light from another distant galaxy. This mysterious object has a mass of about one million times that of our Sun, and its discovery seems consistent with the current best theory about how galaxies like our own Milky Way formed. “Since we can’t see dark matter objects directly, we instead use very distant galaxies as a backlight to look for the gravitational imprints of such objects.” “Hunting for dark objects that don't seem to emit any light is clearly challenging,” said Dr. Devon Powell at the Max Planck Institute for Astrophysics (MPA) and lead author of the study published in Nature Astronomy. “Since we can’t see them directly, we instead use very distant galaxies as a backlight to look for their gravitational imprints.” Dark matter is an enigmatic form of matter not expected to emit light, yet it is essential to understanding how the rich tapestry of stars and galaxies we see in the night sky evolved. As a fundamental building block of the universe, a key question for astronomers is whether dark matter is smooth or clumpy, as this could reveal what it is made of. As dark matter cannot be seen, its properties can only be determined by observing the gravitational lensing effect, whereby the light from a more distant object is distorted and deflected by the gravity of the dark object, creating a characteristic arc in the processed image. The team used a network of telescopes from around the world, including the Green Bank Telescope (GBT), the Very Long Baseline Array (VLBA) and the European Very Long Baseline Interferometric Network (EVN). The latter includes the VIRAC radio astronomical observatory in Irbene. The data from this international network were correlated at the Joint Institute for VLBI ERIC (JIVE) in the Netherlands, forming an Earth-sized super-telescope that could capture the subtle signals of gravitational lensing by the dark object. They discovered that the object has a mass a million times greater than that of our Sun and is located in a distant region of space, approximately 10 billion light years from Earth, when the universe was only 6.5 billion years old. “From the first high-resolution image, we immediately saw a pinch in the gravitational arc, which is the tell-tale sign that we were onto something.” This is the lowest mass object to be found using this technique, by a factor of about 100. To achieve this level of sensitivity, the team had to create a high-fidelity image of the sky using radio telescopes located around the world. Professor John McKean from the University of Groningen (RuG), the University of Pretoria (UP) and the South African Radio Astronomy Observatory (SARAO), who led the data collection and is the lead author of a companion paper, said: “ From the first high-resolution image, we immediately saw a pinch in the gravitational arc, which is the tell-tale sign that we were onto something. Only another small clump of mass between us and the distant radio galaxy could cause this.” To analyse the massive dataset, the team had to develop new modelling algorithms that could only be run on supercomputers. “The data are so large and complex that we had to develop new numerical approaches to model them. This was not straightforward as it had never been done before,” said Dr Simona Vegetti at MPA. “We expect every galaxy, including our own Milky Way, to be filled with dark matter clumps, but finding them and convincing the community that they exist requires a great deal of number crunching,” she continued. The team applied a special technique called gravitational imaging, which allowed them to ‘see’ the invisible dark matter clump by mapping its gravitational lensing effect against the radio-luminous arc. “We expect every galaxy, including our own Milky Way, to be filled with dark matter clumps” “Given the sensitivity of our data, we were expecting to find at least one dark object, so our discovery is consistent with the so-called ‘cold dark matter theory’ on which much of our understanding of how galaxies form is based,” said Powell. “Having found one, the question now is whether we can find more and whether the numbers will still agree with the models.” The team are now analysing the data further to better understand what the mysterious dark object could be, but they are also looking into other parts of the sky to see if they can find more examples of such low-mass dark objects using the same technique. If they continue to find such mysterious objects in other parts of the universe, and if they really turn out to be completely devoid of stars, then some theories of dark matter may be ruled out.

This academic year, the VUAS Lifelong Learning Centre is offering a new lecture cycle, "Science and Culture - for Society", featuring lectures by renowned scientists and distinguished personalities in Latvia, held once a month on Saturdays. On October 11, lectures by Juris Dzelmes, a leading researcher at the Institute of Chemical Physics of the University of Latvia, are scheduled to discuss the challenges of artificial intelligence. In parallel with research in the field of chemical physics, J. Dzelme's interests encompass problems in educational management, philosophy, psychology, and art, and he will discuss the possibilities, development, and threats of artificial intelligence. October 11 at 7 p.m. 11.30–14.30, at Ventspils University of Applied Sciences, J. Dzelme will give an insight into the following topics: Digitalisation, robotisation, artificial intelligence (AI) and superintelligence; Emotions, free will and creativity in artificial and natural neural networks (AI and psyche); AI ethics, value and goal modelling; Supporting communities in an AI-driven world through art and philosophy, through physics and psychology. Application: https://www.venta.lv/muzizglitiba/pieteiksanas Price: 35 EUR More information: mic@venta.lv, tel. 63629650 

On September 26, the European Researchers’ Night events took place throughout Latvia, where colleges, universities, and scientific institutes opened their doors to visitors, offering a variety of free activities. At the VIZIUM Science Center, activities organized by Ventspils University of Applied Sciences and the Ventspils International Radio Astronomy Center (VIRAC) introduced visitors to the processes of star formation, comets, and other small bodies of the Solar System. Throughout the evening, visitors played language games, observed stars and planets through a telescope, and tried their hand at solving a mathematical puzzle – the Tower of Hanoi. Guests also had the opportunity to test their knowledge in various quizzes related to space and languages, gaining new insights along the way.

If you want to feel at home faster in our city of Ventspils and like to build your confidence in everyday conversations, and looking to make friends and integrate into the Latvian community, then join the first Language Café meeting – organized by COLOURS WP5 (EDI)! It’s a relaxed and welcoming meet-up where international and local students come together to: Practice different languages Make new friends Enjoy light snacks and friendly conversations No grammar tests, no pressure – just real conversations in small, friendly groups. Come as you are and enjoy the exchange of cultures and languages! Register HERE Tuesday, 30th September at D0, 16.30!

On 24 September 2025, a delegation from the University of Latvia Faculty of Science and Technology (UL FST) visited Ventspils University of Applied Sciences (VUAS). The UL delegation included FST Dean Aigars Ekers, Acting Vice-Dean for Science Sandris Lācis, Vice-Dean for Studies Aiga Švede, Vice-Dean for Development Diāna Šmite, and Head of the Department of Physics Tija Sīle. VUAS and the Ventspils International Radio Astronomy Centre (VIRAC) were represented by Rector Andris Vaivads, Dean of the Faculty of Information Technology Vairis Caune, Head of the Doctoral School Lilita Sproģe, Chairman of the VUAS Senate and, at the same time, Chairman of the VIRAC Scientific Council Juris Freimanis, along with other researchers and teaching staff. The visit began with a trip to the VIRAC radio telescope complex in Irbene, where senior researcher Artis Aberfelds introduced the guests to the telescopes, associated equipment, and laboratories, and their use in astronomical observations. After a joint lunch at VUAS café Panorāma, Jānis Šate showed the guests the university's electronics teaching laboratories and their equipment. The event reached a productive apogee in a joint discussion lasting around two hours in the VUAS Rectorate conference hall. At its opening, Rector Andris Vaivads gave a presentation about VUAS, followed by a presentation by, Juris Kalvāns, Head of the VIRAC Astronomy and Astrophysics Department, about the main research directions in VIRAC astronomy, while researcher Vladislavs Bezrukovs outlined VIRAC's extensive international cooperation, particularly its participation in European Research Infrastructure Consortia (ERIC). “The event reached a productive apogee in a joint discussion lasting around two hours in the VUAS Rectorate conference hall, where Rector Andris Vaivads gave a presentation about VUAS.” The discussion covered a range of topics related to science and studies. Both sides expressed interest in officially involving VUAS in the UL Master’s programme in Physics, alongside Daugavpils University. VIRAC researchers already teach several astronomy courses within this programme. The potential involvement of the VIRAC high-performance computing cluster in a new computing consortium, where UL is expected to take the leading role, was also discussed. Looking further ahead, UL is also interested in gaining access to VIRAC satellite communication abilities. Finally, the UL–VUAS cooperation agreement is to be renewed, including matters of collaboration in doctoral studies and research, as well as Latvia’s participation in the International Astronomical Union. The meeting took place in a frendly atmosphere, giving confidence in the successful continuation of cooperation between UL and VUAS.

On September 1 of this year, Ventspils University of Applied Sciences launched a new European Union (EU) co-funded project “Modernization of the Study Environment of Ventspils University of Applied Sciences”, No. 4.2.1.8/2/25/I/007. The project implementation period is 24 months, until August 31, 2027. The project aims to ensure the modernization of the study environment of Ventspils University of Applied Sciences, which includes the improvement and development of the infrastructure of the bachelor's study program "Computer Science" and the professional bachelor's study program "Electronics Engineering". To ensure high-quality and competitive education, targeted measures will be implemented within the project framework, focusing on the technological modernization of study spaces, enhancing the material and technical base, and introducing information and communication technologies (ICT). These engineering and IT programs are strategically important for the sustainable economic growth of the Ventspils region and the entire country of Latvia, preparing highly qualified specialists to promote digital transformation and technological development. During the project, the infrastructure of laboratories and classrooms will be enhanced to ensure that study rooms are equipped with the latest technologies and meet the standards of modern higher education. The latest technologies and equipment will be purchased and introduced, significantly expanding students' opportunities to work with current industry tools and software, thereby preparing them to work with technologies widely used in the industry. In addition, it is planned to continue adapting the digital infrastructure to modern requirements, allowing for the implementation of the hybrid and distance learning process in accordance with current educational trends. The modernization carried out will significantly improve the quality of studies and compliance with labour market requirements, providing students with the opportunity to acquire practical skills and adapt to the growing requirements of the industry. This project will not only improve the study environment and promote the integration of innovations into the learning process, but will also contribute to the development of Ventspils University of Applied Sciences as a higher education and research center in Latvia and beyond, attracting students from the region and the country, as well as from abroad. The total cost of the project “Modernization of the study environment of Ventspils University of Applied Sciences”, No. 4.2.1.8/2/25/I/007, is 215,083.00 EUR, of which the planned amount of the European Regional Development Fund is 85% of the eligible expenses – 182,820.55 EUR, and the amount of state funding is 15% of the eligible costs – 32,262.45 EUR.

We are pleased to invite you to participate in the VIRAC Summer School on Pulsar Observations at Centimetre and Metre Wavelengths: Ventspils, Latvia |September 8–19, 2025 This intensive and inspiring summer school is designed for Master’s students, PhD candidates, and early-career researchers in astronomy and astrophysics. The event is hosted by Ventspils University of Applied Sciences. Key Topics: Pulsar observations with the LOFAR telescope Pulsar astronomy fundamentals Observation planning Pulsar data processing and analysis Venue: Engineering Research Institute – Ventspils International Radio Astronomy Centre, Ventspils University of Applied Sciences, Room 407

The Latvian Rural Advisory and Education Centre, in cooperation with project partners, one of which is Ventspils University of Applied Sciences, invites you to an online opening seminar on August 27 at 10:00 AM on the new My Farm livestock section, which helps to: accumulate and analyze farm data, monitor animal welfare, plan work and make data-driven decisions, save time in preparing reports. At the seminar: You will learn how this idea originated and why it remains relevant today. You will hear about the experiences and benefits of experts for Latvian livestock farmers. You will see a practical demonstration of how to use the tool on your farm. You will receive answers to your important questions. Questions can be asked in the comments during the live broadcast. Live on Facebook profiles @LLKCOzolnieki and @Manslauks, as well as www.llkc.lv Link to the event: Facebook: https://www.facebook.com/events/1290216356070792 The event is a part of the project No.: 21-00-A01611-000017 "Efficient Environmental and Animal Welfare Farm Monitoring". Project Objective: The long-term goal is to promote sustainability and competitiveness in the Latvian livestock sector, in line with the guidelines of the European Green Deal. In recent years, global environmental and climate issues have become increasingly relevant, and it can be assumed that in the future, consumers will demand products produced in an environmentally friendly manner. These future challenges compel farmers to reassess their current management practices and explore environmental and sustainability issues. To achieve this goal, an innovative farm monitoring system will be developed for the livestock sector, ensuring comprehensive data collection and analysis in one place. This system will promote compliance with animal welfare requirements, facilitate sustainable and environmentally friendly farming practices, and enable the monitoring of daily activities, ultimately reducing the time spent on preparing various reports.