One of the simplest and most popular ideas is that there's an everywhere-permeating vacuum energy with negative pressure which we've never detected in any way other than by measuring the expansion of the universe...so we call it dark energy.

最简单且最受欢迎的想法之一是到处都是负压渗透的真空能量，除了通过测量宇宙的膨胀，我们从未以任何方式探测到过。所以我们称之为暗能量。