Maser (rocket)
MASER is a sounding rocket that is used in the MASER microgravity research rocket programme, operated by the Swedish Space Corporation (SSC). The main customer is the European Space Agency (ESA), particularly the EMIR and ELIPS programmes. MASER stands for "MAterials Science Experiment Rocket".
The launches take place at Esrange in Northern Sweden. Throughout its sub-orbital flight, the programme offers 6–7 minutes of microgravity aboard the rocket and full recovery of experimental modules with helicopter immediately after flight.