Meet A.M. "Elena's Suppository", an asteroid mining ship. Designed for total matter capture, the ship can take asteroids of up to 18 km across, heat them up and then process the matter layer by layer, in order of volatility.

The energy required to melt such big rocks may be delivered from internal source or it may be provided via multiple focused sunlight beams through the transparent optical sapphire windows.

Basic stats: Length ~110km, width 22km (32km with the hangar deck extension), maximum acceleration 0.01g. Crew: 25-75 thousand, 50-80 support ships of varying types. Maximum drydock size: 2km dia, 8km length.

Here pictured "munching" on an asteroid 8km in diameter.