Once an avalanche has begun, a dense core of snow accelerates rapidly, picking up more snow.

The dense core will not allow for irradiation as stated before.

Emanating radially from the dense core of actin are actin filaments reaching to the plasma membrane and between neighboring podosomes.

He argued that the particles would build up angular momentum, causing the dense core to degrade.

Since then, stars have formed by the collapse of small, dense core regions in large, cold molecular clouds of hydrogen gas.