In the milliseconds following this explosion, clouds of gases began to coalesce, collapse, and compress under gravity to form the building blocks of galaxies.
在大爆炸后的数毫秒之内，成团的气体开始结合、分解并受万有引力的压缩而形成星系的基础构件。
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An eyewitness who owns a shop inside the market also told reporters that he heard a loud explosion, with a ball of fire and clouds of smoke in its aftermath.
The dust concentration and velocity of turbulence have significant effects on the level of explosion and measurement of the minimum ignition energy of dust clouds.