sentences:  All rockets for atmospheric soundings in Spain are launched from El Arenosillo.In 2015 Delft Aerospace Rocket Engineering broke the European altitude record for amateur rocketry by launching the Stratos II+ rocket to 21.5 km altitude from El Arenosillo.On 1 March 2017, Zero 2 Infinity tested its first rocket, a Bloostar prototype, in El Arenosillo.