This icon is a rock-like shape with 'movement lines' to the top right of the rock-like shape, making is appear to be travelling down and to the left.
This Asteroid icon is made in Material Design style
developed by Google. This style is based on extremely simplified shapes, thin two-pixel lines, and is optimized for 24x24 px. Unlike other vector icon packs that have merely hundreds of icons, this icon pack contains 6,200 icons, all in the same style and quality.