During a parabolic flight maneuver, everything inside the aircraft is weightlessness for about 20 second. This condition is used for experiments in various fields, including medicine, biology, and physics. The image is provided by UZH Space Hub, the ‘Space and Aviation’ cluster at the University of Zurich. © Regina Sablotny / UZH

Steep dive maneuver during a parabolic flight that is conducted to create weightlessness for research. The image is provided by UZH Space Hub, the ‘Space and Aviation’ cluster at the University of Zurich. © Regina Sablotny / UZH

The Earth can be observed/measured from a sky, taking advantage of the low level of vibration on board a Zeppelin. The image is provided by UZH Space Hub, the ‘Space and Aviation’ cluster at the University of Zurich. © Regina Sablotny / UZH

The Zeppelin NT, a multi-purpose airship is used for research flight, offering low vibration and vertical climbs and descents. The image is provided by UZH Space Hub, the ‘Space and Aviation’ cluster at the University of Zurich. © Regina Sablotny / UZH

The Zeppelin NT at the airfield Dübendorf in Switzerland, from where it starts for research flights. The image is provided by UZH Space Hub, the ‘Space and Aviation’ cluster at the University of Zurich. © Regina Sablotny / UZH

A sounding rocket of the Texus-type lifts off from norther Sweden, accommodating scientific experiments that are exposed to approximately 5 minutes of weightlessness during the flight. The image is provided by UZH Space Hub, the ‘Space and Aviation’ cluster at the University of Zurich. © Regina Sablotny / UZH

Researchers test the detection of plastic waste from the sky with measurement on board a Zeppelin. The image is provided by UZH Space Hub, the ‘Space and Aviation’ cluster at the University of Zurich. © Regina Sablotny / UZH

Cockpit instrumentation in an aircraft performing a parabolic flight. The image is provided by UZH Space Hub, the ‘Space and Aviation’ cluster at the University of Zurich. © Regina Sablotny / UZH

The Earth can be observed/measured from a sky, taking advantage of the low level of vibration on board a Zeppelin. The image is provided by UZH Space Hub, the ‘Space and Aviation’ cluster at the University of Zurich. © Regina Sablotny / UZH

Cells are supplied with nutrition and prepared for an experiment on a sounding rocket, where they are exposed to weightlessness. The image is provided by UZH Space Hub, the ‘Space and Aviation’ cluster at the University of Zurich. © Regina Sablotny / UZH

The Zeppelin NT at the airfield Dübendorf in Switzerland, from where it takes off for research flights. The image is provided by UZH Space Hub, the ‘Space and Aviation’ cluster at the University of Zurich. © Regina Sablotny / UZH

View from the cockpit of a Zeppelin during a research flight over Zurich, Switzerland. The image is provided by UZH Space Hub, the ‘Space and Aviation’ cluster at the University of Zurich. © Regina Sablotny / UZH

Scientific instrumentation on bord of a Zeppelin during a research flight over Zurich. The image is provided by UZH Space Hub, the ‘Space and Aviation’ cluster at the University of Zurich. © Regina Sablotny / UZH