Warning: This page or section contains speculation that may not be accurate.
The Sky Gate is a movable barrier and the only exit to outer space. It is a massive structure placed within the Earth's atmosphere. It only opens for one day before closing and restricts passage for 39 years.
Controversies and Contradictions
In So Near and Yet So Far, Haley Galaxy was able to enter Earth's atmosphere and land safely, and even leave without any restriction from the Sky Gate, let alone never being mentioned and possibly retconned from the series entirely right after its debut.