Gunbuster Episode 6: At the End of the Endless Stream
Episode 6 of 6 of Gunbuster, aired July 7, 1989, 30 minutes. Available with English subtitles and dub where released.
Episode summary
Fifteen years later, Kazumi is called to another mission, to detonate a black hole bomb in the enemy's home galaxy. She joins Noriko and Jung as they pilot the Gunbusters to their final destiny that could mean the "extinction or survival of the human race."