Nature's personal screw-you to the dinosaurs
Nature's personal screw-you to the dinosaurs


Name: Asteroid, Comet (technically different, an asteroid drawing a bright tail when coming near stars), Meteoroid (not included here, astral bodies smaller than 1 meter), Small Solar System Body (for asteroids originating from our star system)
Origin: Real Life
Type: Small Astral Body, Minor Planet (it's literally a big rock from space)
In use by: The Universe
Powered by: N/A (it moves via attractive forces of gravity and retains its speed due to the lack of friction in space)
Destructive Capacity: Varies depending on velocity and size, multi city block level+ (3 kilotons for 4 meter diameter) to country level+ (the K-T event, an impact which supposedly killed off the Dinosaurs was estimated around 100 teratons of TNT), potentially even higher (Ceres I., the largest known asteroid's impact would be huge, well in the exatons of energy yield)
Dimensions: Varies, their diameter could be as small as a few meters up to tens or even hundreds of kilometers (Ceres I.)
Durability: Varies depending on its size and characteristics, can be fragmented from wall to city level firepower or occasionally above (like with Ceres I.), stopping them requires energies comparable to the power of their impact
Material: Varies (usually they have a rocky crust around a heavier nickel-iron core, Comets also have considerable amount of water in them)
Mass: Varies depending on its size and other characteristics, can range from a few metric tons to trillions (K-T Meteor) to be even quintillion tons in weight
Performance: Massively hypersonic (the maximum speed for an asteroid orbiting the Sun at the distance of Earth is around Mach 134, and due to the acceleration of Earth's gravity, the minimum speed of an asteroid hitting Earth's atmosphere is Mach 33.7. If an asteroid came from outside the solar system (one that isn't orbiting the sun) it could hit Earth at much greater speed than the maximum for an orbital asteroid. However, no known asteroids of this type have been detected. Comets from out in the Kupier belt can achieve velocities up to Mach 217)
Weaknesses: Has no actual form of propulsion. If intercepted well ahead in time these asteroids can be redirected by power equaling only a fraction of their kinetic energy.
Terrain: Space
Operational Timeframe: N/A
Weaponry: N/A
Weapons Range: Impact
Special Forms: N/A
Notable Features: N/A
Notable Attacks/Techniques:

- Collision: The asteroid slams into whatever is in its way and doesn't give a damn about it.

Notable OBD Victories:

- Bleachverse (Bleach) (it should be noted that this is a 3 mile long asteroid)

Notable Draws:

- Arceus (Pokemon) (Arceus canonicly jobbed to an asteriod in the 12th Pokemon movie. Though Arceus lived through the event he was KOed by it as nonsensical as that is...)

Notable OBD Losses:

Other: A fight involving an asteroid has unusual conditions. The general scenario is that a fictional character or verse must intercept an incoming asteroid (with its size clearly specified by the OP) before it destroys them.