Origin of gravisphere
Examples from the Web for gravisphere
Historical Examples of gravisphere
Shortly after entering the moon's gravisphere it began to accelerate again.
He was thankful they were not required to wear their heavy pressure suits until well into the moon's gravisphere.
Drone Baker had entered the moon's gravisphere at the precise time spelled out by the earth computers.
Some would be caught in the gravisphere of planets, would crash down into strange worlds.