This is about 10 percent of the universe's current age.

这大约是宇宙当前年龄的10%。

So what will happen with black holes as the universe ages and dies around them?

随着周围的宇宙逐渐凋零老去，黑洞会发生什么事？

Scientists expected this expansion would slow as the universe aged; the gravitational attraction between bits of matter would act as a brake.

科学家预计，随着宇宙的老化，这种膨胀速度将会减慢。物质之间的引力会起到刹车的作用。