Vega with Arion micro launchers

A micro launcher can place a small satellite typically used for Earth observation, technology demonstration, education and telecoms into low Earth orbit, launching from the ground or from an aerial platform.

Spanish startup PLD Space is developing Arion 2, a micro launch vehicle with a liftoff mass of 14 t. It uses elements common with their Arion suborbital demonstrator and is powered by liquid oxygen–kerosene engines.