Borr

Mass Effect
Borr is a huge hydrogen-helium has giant with over 90 moons. Its striking coloration is caused by the light of ionized hydrogen filtering through an upper cloud deck of sodium. The source of the ionization has not yet been confirmed, but Borr's mass (equal to six Jupiters) and high temperature suggest it may be a small "brown dwarf", a large gas giant that gained nearly enough mass to ignite into a small star.

Though Borr's deep gravity well makes mining operation difficult, it is the only gas giant in the system. The hydrogen needed for the local fuel cell industry, combined with the ever-present need for helium-3 fusion torch fuel, make it economical to mine.

Mass Effect 3
Boor is a hydrogen-helium gas giant with over 90 moons. The light of ionized hydrogen filtering through an upper cloud deck of sodium causes its striking coloration. The source of the ionization has not been confirmed, but Borr's mass (equal to six Jupiters) and high temperature suggest it may be a "brown dwarf," a gas giant that gained almost enough mass to ignite into a small star.

The Reapers destroyed Borr's extensive helium-3 infrastructure, although wreckage indicates that the Sixth Fleet did not give up the planet without a fight.