Kaette Kita Top wo Nerae! Kagaku Kouza
Japanese title: 帰ってきた トップをねらえ! 科学講座
Alternative titles: Aim for the Top! Gunbuster Science Lesson Returns, Gunbuster New Science Lessons, Science Course Return
Type: Special
Source: Original
Episodes: 2
Status: Finished Airing
Aired: Feb 24, 2012
Duration: 5 min per ep
Rating: G - All Ages
Studios: Gainax
Genres: Comedy, Sci-Fi
Themes: Mecha

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.