The Expanding Universe

A recent newspaper article announced that more than 70 percent of the universe consists of something called dark energy, which has just been discovered. The other constituents are dark matter, and then all the stars, planets, asteroids, etc. Dark energy is what's pushing the universe ever outward, and as best as "we" can tell, space is not curved but indeed infinite and expanding. (And how can something be infinite if it's expanding?) Meanwhile, a guy in an apartment in NYC almost died when ceiling high stacks of newspapers and magazines that filled his apartment fell in on him. Don't talk to him about expanding universes, buddy.