Bop
A tiny, dense moon with a gravitational punch that belies its small stature.
Bop is a diminutive, airless moon orbiting the gas giant Jool within the Kerbol system. Known for its remarkably high density and surprisingly strong surface gravity relative to its small size, it presents a unique challenge for Kerbal explorers. Despite being one of the smallest bodies in the solar system, Bop's gravitational pull is deceptive, often catching pilots off guard during approach maneuvers.
- Parent Body
- Jool
- Type
- Moon
- Atmosphere
- None (Vacuum)
- Surface Gravity
- High relative to size (~0.8 m/s²)
- Terrain Features
- Dense cratering, boulder-rich surface
- Exploration Status
- Visited by multiple Kerbal spacecraft
Lore & Background
The scientific community has long debated Bop's origin, with some suggesting it may be a captured asteroid or a remnant core from a catastrophic collision. Its lack of atmosphere means that any impact leaves an unblemished record of solar system history etched into its rocky crust. For the Kerbals, Bop serves as a testbed for high-gravity landing algorithms and a reminder that in space, size does not always equate to strength.
In Their Own Story
Commander 'Rocket' Rooter adjusted his visor, squinting at the grey horizon rushing up to meet him. The telemetry readouts were screaming; the descent rate was too fast for such a tiny world. "Control, we're hitting the ground hard," he crackled into the comms, feeling the G-forces press against his suit as if an invisible hand were squeezing him. As the landing struts absorbed the shock on Bop's rocky surface, Rooter realized why this moon was feared: it felt heavier than any planet he had visited before. Silence followed, broken only by the hum of the engine cooling down in the vacuum.
Reader's Guide
Bop is a small, spherical body with no atmosphere to speak of, meaning there is no aerobraking possible for incoming vessels. Pilots must rely entirely on rocket propulsion to slow down and land. The surface gravity is surprisingly high for such a small moon, creating a challenging environment for landing and takeoff. Fuel margins must be calculated carefully to ensure enough propellant remains for the return journey. Exploration of Bop reveals a heavily cratered terrain dotted with large boulders. The lack of weathering means these features remain sharp and distinct. While scientifically interesting due to its density, it offers no resources or shelter, making it primarily a waypoint for transit or a destination for hardy surface rovers.
Did You Know?
- Bop has one of the highest densities in the Kerbol system despite being very small.
- It is the smallest moon of Jool that can be landed on with standard vessel designs.
- The lack of atmosphere makes landing precision critical, as there are no parachutes available.
- Its surface gravity is strong enough to make movement feel heavier than expected for its size.
Elsewhere in the Kerbal Space Program universe
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