Such expansion was precisely what our universe did in the Big Bang, when it suddenly exploded from a tiny clump of matter into a fully-fledged cosmos.

这种膨胀正好就是我们的宇宙在大爆炸时期所发生的事情，当时一小块物质膨胀成了现在成熟的宇宙。

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His tale encompasses the vast sweep of modern science, from the infinitesimal to the infinite, from the emission of photons to the expansion of the cosmos.

NPR: Einstein: Relatively Speaking, a Complicated Life

This observation led to the theory that some mysterious, gravitationally repulsive dark energy must be behind the rising expansion of the cosmos - although we don't really have the foggiest idea what that is.

BBC: Dark discussion ahead for Europe and US