Extra science lessons included with the Gunbuster Blu-ray Box Complete Edition. These explain how the space ropeway works, and time dilation from near-lightspeed travel.
Aim for the Top! Gunbuster Science Lesson Returns, Gunbuster New Science Lessons, Science Course Return, 帰ってきた トップをねらえ! 科学講座 Kaette Kita Top wo Nerae! Kagaku Kouza
