Every day, several tons of cosmic dust hit the Earth and some of the dust material remains in the upper atmosphere for some time. We study this input of cosmic dust and its effects on the upper atmosphere. The cosmic dust fragments into small smoke particles in a process that is observed as meteor. Meteors can be observed with radar, and we analyse the meteor signals that we find in the archived radar data of the international EISCAT research infrastructure. In collaboration with EISCAT scientists and other users, we will develop solutions to investigate meteors with the new advanced EISCAT_3D radar. We are also testing our hypothesis that the smoke particles are contained in the water ice particles that form clouds in the upper atmosphere in summer: the noctilucent clouds that are higher than any other clouds in our atmosphere. We do this by collecting ice particles with a rocket and studying the remnants of the particles in the laboratory. We will also investigate whether we can find remnants of space debris, that is, particles that are not naturally occurring but are created by human space activities. The MXD2 rocket campaign will be launched from Andøya in summer 2025 and aside from the sample collection the rocket measures charged dust and plasma at 70 to 110 km altitude. The radar and rocket measurements will be interpreted and complemented by theoretical work and embedded in a network of existing and new national and international collaborations being built through this project. Two PhD students and one postdoctoral fellow working on the project will have the opportunity to collaborate with researchers from Norway, Sweden, Finland, Germany, the United Kingdom and Japan. We expect this to provide important insights into a region of the upper atmosphere at the gateway to space, where measurements by space probes are technically difficult and which is subject to large fluctuations over the Arctic.