The MIRACLE experiment, led by a team of Master's students in Physics in collaboration with the University of Pisa and INFN laboratories, is a cosmic rays experiment designed
to flight on a High Altitude Balloon. The scientific goal is the measurement of the vertical and horizontal flux of cosmic particles at different altitudes.
The experiment was realized from
scratch and had a successful 2.5 hour long flight to take data.
The various phases of construction of the MIRACLE experiment are described in this article up to the launch.
We also present preliminary results of the offline analysis of the data collected.