The Main Sequencer mission was a mission launched by SpaceX to try and ignite DENIS-P J104814.7-395606, one of the closest L-class brown dwarf, into an M-class main-sequence red dwarf.
Overview[]
The mission was done to demonstrate the power of the Greenhouser-1 CO2 payload delivery system. The payload was a highly-compressed reduced-density hydrogen gas that, when hit, increases the hydrogen's density to its normal one and releases 110 Jupiter mass of hydrogen, able to start a hydrogen fusion on a L0-class brown dwarf.
Currently, DENIS-P J104814.7-395606 is an M5-class red dwarf, with terraforming projects in progress, done by SpaceX as well.