According to this paradigm, the early history of the universe—that is, until about six billion years after the big bang—was an era of cosmic fireworks: galaxies collided and merged, powerful black holes sucked in huge whirlpools of gas, and stars were bor
According to this paradigm, the early history of the universe—that is, until about six billion years after the big bang—was an era of cosmic fireworks: galaxies collided and merged, powerful black holes sucked in huge whirlpools of gas, and stars were bor
根据这样的说法，大霹雳后60亿年内的早期宇宙乃是处处充满火花的时代：星系相互碰撞与合并，威力强大的黑洞像漩涡般吸入大量气体，恒星则以惊人的速率大量诞生。