"…maybe they got stuck in some mud puddle, or dropped by a landslide! Or fell into a sinkhole!"
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; she even left without any restriction from the Sky Gate. It was never mentioned after its debut episode, possibly being retconned from the series entirely.