NASA had a big press release on dark energy. If you’re new to the concept of dark energy or have only heard about it and don’t know what it exactly is (like me), go to this wikipedia article for starters. For those of you guys who understand high-tech space language, go here. Er, you guys can read the comments too.
Phil Plait over at Bad Astronomy assures us that the language in the press release is more people-friendly.
[via Bad Astronomy]