mass component वाक्य

However, their velocities are too large for them to remain gravitationally bound by their mutual attractions, implying the presence of either an additional invisible mass component, or an additional attractive force besides gravity.
The process of in-situ resource utilization using materials native to space for propellant, thermal management, tankage, radiation shielding, and other high-mass components of space infrastructure could lead to radical reductions in its cost.