At the central campus: In the Nieper building


Long Night of Science 2025
| During his lab tour, Lukas Kube discussed 3D scanning for quality assurance and reverse engineering (Photo: Christian Hüller/HTWK Leipzig)


Long Night of Science 2025
| During his lab tour, Lukas Kube discussed 3D scanning for quality assurance and reverse engineering (Photo: Christian Hüller/HTWK Leipzig)


Long Night of Science 2025
| During his lab tour, Lukas Kube discussed 3D scanning for quality assurance and reverse engineering (Photo: Christian Hüller/HTWK Leipzig)


Long Night of Science 2025
| During his lab tour, Lukas Kube discussed 3D scanning for quality assurance and reverse engineering (Photo: Christian Hüller/HTWK Leipzig)


Long Night of Science 2025
| During his lab tour, Lukas Kube discussed 3D scanning for quality assurance and reverse engineering (Photo: Christian Hüller/HTWK Leipzig)


Long Night of Science 2025
| A view of some of the exhibits in the lobby of the Nieper Building (Photo: Christian Hüller/HTWK Leipzig)


Long Night of Science 2025
| A view of some of the exhibits in the lobby of the Nieper Building (Photo: Christian Hüller/HTWK Leipzig)


Long Night of Science 2025
| A view of some of the exhibits in the lobby of the Nieper Building (Photo: Christian Hüller/HTWK Leipzig)


Long Night of Science 2025
| The bike frame was put through its paces on the bikelab test bench (Photo: Christian Hüller/HTWK Leipzig)


Long Night of Science 2025
| Prof. Detlef Riemer gave a lecture on bionics (Photo: Pauline Schroers and Magdalena Groh/HTWK Leipzig)


Long Night of Science 2025
| Prof. Detlef Riemer with the new robot dog (Photo: Christian Hüller/HTWK Leipzig)


Long Night of Science 2025
| The new robot dog (Photo: Saskia Pramor/HTWK Leipzig)


Long Night of Science 2025
| The new robot dog (Photo: Saskia Pramor/HTWK Leipzig)


Long Night of Science 2025
| The new robot dog (Photo: Saskia Pramor/HTWK Leipzig)


Long Night of Science 2025
| Prof. Detlef Riemer with the new robot dog (Photo: Saskia Pramor/HTWK Leipzig)


Long Night of Science 2025
| A view of some of the exhibits in the lobby of the Nieper Building (Photo: Christian Hüller/HTWK Leipzig)


Long Night of Science 2025
| At the booth of the Sustainable Construction Research Group and the Institute for Process Automation and Embedded Systems (PAES), visitors learned how carbon concrete can revolutionize construction (Photo: Saskia Pramor/HTWK Leipzig)


Long Night of Science 2025
| The FLEX research group's booth focused on building with wood — using augmented reality and robots (Photo: Saskia Pramor/HTWK Leipzig)


Long Night of Science 2025
| The FLEX research group's booth focused on building with wood — using augmented reality and robots (Photo: Saskia Pramor/HTWK Leipzig)


Long Night of Science 2025
| The FLEX research group's booth focused on building with wood — using augmented reality and robots (Photo: Saskia Pramor/HTWK Leipzig)


Long Night of Science 2025
| The FLEX research group's booth focused on building with wood — using augmented reality and robots (Photo: Saskia Pramor/HTWK Leipzig)


Long Night of Science 2025
| The FLEX research group's booth focused on building with wood — using augmented reality and robots (Photo: Saskia Pramor/HTWK Leipzig)


Long Night of Science 2025
| The interactive sandbox from the Institute of Geotechnical Engineering brought soil compaction to life (Photo: Christian Hüller/HTWK Leipzig)


Long Night of Science 2025
| The interactive sandbox from the Institute of Geotechnical Engineering brought soil compaction to life (Photo: Christian Hüller/HTWK Leipzig)


Long Night of Science 2025
| The central information booth (Photo: Christian Hüller/HTWK Leipzig)


Long Night of Science 2025
| In the 3D printing lab, visitors got to see what can be done with it (Photo: Saskia Pramor/HTWK Leipzig)


Long Night of Science 2025
| At the Composite Circularity research group’s booth, visitors could see the new forms that items such as disused wind turbine blades can take on (Photo: Saskia Pramor/HTWK Leipzig)


Long Night of Science 2025
| At the Composite Circularity research group’s booth, visitors could see the new forms that items such as disused wind turbine blades can take on (Photo: Saskia Pramor/HTWK Leipzig)


Long Night of Science 2025
| At the Composite Circularity research group’s booth, visitors could see the new forms that items such as disused wind turbine blades can take on (Photo: Saskia Pramor/HTWK Leipzig)


Long Night of Science 2025
| Martin Neuburger led tours of the electrical engineering lab (Photo: Saskia Pramor/HTWK Leipzig)


Long Night of Science 2025
| Martin Neuburger led tours of the electrical engineering lab (Photo: Saskia Pramor/HTWK Leipzig)


Long Night of Science 2025
| Martin Neuburger led tours of the electrical engineering lab (Photo: Saskia Pramor/HTWK Leipzig)


Long Night of Science 2025
| Inside the glass water tower, visitors could see water flowing (Photo: Saskia Pramor/HTWK Leipzig)


Long Night of Science 2025
| Inside the glass water tower, visitors could see water flowing (Photo: Saskia Pramor/HTWK Leipzig)


Long Night of Science 2025
| Dr. Beate Villmann gave a tour of the impressive scanning electron microscope (Photo: Pauline Schroers and Magdalena Groh/HTWK Leipzig)


Long Night of Science 2025
| Leonhard Gehlauf from the Industrial Measurement Technology project group explained in his presentation how Peltier elements can be used for water extraction (Photo: Christian Hüller/HTWK Leipzig)


Long Night of Science 2025
| Leonhard Gehlauf from the Industrial Measurement Technology project group explained in his presentation how Peltier elements can be used for water extraction (Photo: Christian Hüller/HTWK Leipzig)


Long Night of Science 2025
| The hydraulic engineering laboratory at the Institute of Hydraulic Engineering and Urban Water Management focused on flash floods and heavy rainfall (Photo: Pauline Schroers and Magdalena Groh/HTWK Leipzig)


Long Night of Science 2025
| The hydraulic engineering laboratory at the Institute of Hydraulic Engineering and Urban Water Management focused on flash floods and heavy rainfall (Photo: Pauline Schroers and Magdalena Groh/HTWK Leipzig)


Long Night of Science 2025
| The hydraulic engineering laboratory at the Institute of Hydraulic Engineering and Urban Water Management focused on flash floods and heavy rainfall (Photo: Pauline Schroers and Magdalena Groh/HTWK Leipzig)


Long Night of Science 2025
| The 4th floor housed the outdoor agri-photovoltaics laboratory (Photo: Pauline Schroers and Magdalena Groh/HTWK Leipzig)


Long Night of Science 2025
| The 4th floor housed the outdoor agri-photovoltaics laboratory (Photo: Pauline Schroers and Magdalena Groh/HTWK Leipzig)


Long Night of Science 2025
| Visitors had the chance to compete against the highly precise and fast SCARA robot in a simple game of tic-tac-toe (Photo: Christian Hüller/HTWK Leipzig)


Long Night of Science 2025
| Visitors had the chance to compete against the highly precise and fast SCARA robot in a simple game of tic-tac-toe (Photo: Christian Hüller/HTWK Leipzig)


Long Night of Science 2025
| The soccer robots from HTWK Robots (Photo: Saskia Pramor/HTWK Leipzig)


Long Night of Science 2025
| The soccer robots from HTWK Robots (Photo: Saskia Pramor/HTWK Leipzig)


Long Night of Science 2025
| The soccer robots from HTWK Robots (Photo: Saskia Pramor/HTWK Leipzig)


Long Night of Science 2025
| The soccer robots from HTWK Robots (Photo: Saskia Pramor/HTWK Leipzig)


Long Night of Science 2025
| The soccer robots from HTWK Robots (Photo: Saskia Pramor/HTWK Leipzig)


Long Night of Science 2025
| The soccer robots from HTWK Robots (Photo: Saskia Pramor/HTWK Leipzig)
At the central campus: Other buildings


Long Night of Science 2025
| At the Fechner building, children as young as elementary school age solved exciting chemistry puzzles (Photo: Saskia Pramor/HTWK Leipzig)


Long Night of Science 2025
| At the Fechner building, children as young as elementary school age solved exciting chemistry puzzles (Photo: Saskia Pramor/HTWK Leipzig)


Long Night of Science 2025
| At the Fechner building, children as young as elementary school age solved exciting chemistry puzzles (Photo: Saskia Pramor/HTWK Leipzig)


Long Night of Science 2025
| In front of the university library, the Ba-Hu Elferrat, the carnival club of HTWK Leipzig, once again served drinks and grilled food (Photo: Saskia Pramor/HTWK Leipzig)


Long Night of Science 2025
| The Gutenberg building offered insights into fundamental processes that also play a crucial role in industrial inkjet applications (Photo: Saskia Pramor/HTWK Leipzig)


Long Night of Science 2025
| At the Lipsius building, visitors had the opportunity to program stage equipment and solder HTWK bunnies (Photo: Saskia Pramor/HTWK Leipzig)


Long Night of Science 2025
| At the Lipsius building, visitors had the opportunity to program stage equipment and solder HTWK bunnies (Photo: Saskia Pramor/HTWK Leipzig)


Long Night of Science 2025
| At the Lipsius building, visitors had the opportunity to program stage equipment and solder HTWK bunnies (Photo: Saskia Pramor/HTWK Leipzig)


Long Night of Science 2025
| At the Lipsius building, visitors had the opportunity to program stage equipment and solder HTWK bunnies (Photo: Saskia Pramor/HTWK Leipzig)


Long Night of Science 2025
| The Lipsius Building also featured live demonstrations of smoke detectors as well as related presentations (Photo: Saskia Pramor/HTWK Leipzig)


Long Night of Science 2025
| At the Lipsius building, visitors had the opportunity to program stage equipment and solder HTWK bunnies (Photo: Saskia Pramor/HTWK Leipzig)


Long Night of Science 2025
| At the Media Center, we toured the packaging technology and materials laboratories (Photo: Saskia Pramor/HTWK Leipzig)


Long Night of Science 2025
| Visitors to the media center had the opportunity to see how the latest printing technologies can be used to design table tennis balls, which they then had the chance to test (Photo: Saskia Pramor/HTWK Leipzig)


Long Night of Science 2025
| The university library hosted its first escape game (Photo: Pauline Schroers and Magdalena Groh/HTWK Leipzig)


Long Night of Science 2025
| Puzzle enthusiasts were able to make exciting discoveries at the university library’s escape game (Photo: Pauline Schroers and Magdalena Groh/HTWK Leipzig)


Long Night of Science 2025
| Puzzle enthusiasts were able to make exciting discoveries at the university library’s escape game (Photo: Pauline Schroers and Magdalena Groh/HTWK Leipzig)


Long Night of Science 2025
| Puzzle enthusiasts were able to make exciting discoveries at the university library’s escape game (Photo: Pauline Schroers and Magdalena Groh/HTWK Leipzig)
At the campus in the south centre: Wiener-Bau


Long Night of Science 2025
| The effects of high electric fields were on display in the HTWK high-voltage laboratory (Photo: Jan Urban/HTWK Leipzig)


Long Night of Science 2025
| The effects of high electric fields were on display in the HTWK high-voltage laboratory (Photo: Jan Urban/HTWK Leipzig)


Long Night of Science 2025
| The effects of high electric fields were on display in the HTWK high-voltage laboratory (Photo: Jan Urban/HTWK Leipzig)


Long Night of Science 2025
| The effects of high electric fields were on display in the HTWK high-voltage laboratory (Photo: Jan Urban/HTWK Leipzig)


Long Night of Science 2025
| The Makers Lab offered delicious ice cream creations from its workshop and ice cream truck, while also explaining the process from concept to finished product (Photo: Jan Urban/HTWK Leipzig)


Long Night of Science 2025
| The Makers Lab offered delicious ice cream creations from its workshop and ice cream truck, while also explaining the process from concept to finished product (Photo: Jan Urban/HTWK Leipzig)


Long Night of Science 2025
| The Makers Lab offered delicious ice cream creations from its workshop and ice cream truck, while also explaining the process from concept to finished product (Photo: Jan Urban/HTWK Leipzig)


Long Night of Science 2025
| There were also plenty of robots that visitors of all ages could touch and operate themselves (Photo: Jan Urban/HTWK Leipzig)


Long Night of Science 2025
| There were also plenty of robots that visitors of all ages could touch and operate themselves (Photo: Jan Urban/HTWK Leipzig)


Long Night of Science 2025
| There were also plenty of robots that visitors of all ages could touch and operate themselves (Photo: Jan Urban/HTWK Leipzig)


Long Night of Science 2025
| There were also plenty of robots that visitors of all ages could touch and operate themselves (Photo: Jan Urban/HTWK Leipzig)


Long Night of Science 2025
| There were also plenty of robots that visitors of all ages could touch and operate themselves (Photo: Jan Urban/HTWK Leipzig)
Review 2025
More than 50 research institutions took part in the Long Night of Science on 20 June 2025 with almost 700 individual events. Visitors were able to explore topics such as artificial intelligence, climate change, the energy transition, medicine, society and culture throughout the city.
At HTWK Leipzig, guests could also look forward to around 40 hands-on stations and exhibits to touch and try out at the central campus in Leipzig-Connewitz and in the Wiener-Bau in the south centre, as well as guided tours of otherwise closed laboratories and exciting lectures from around 30 different research, teaching and study areas at HTWKLeipzig.
