Dark energy site open for business!

I think it's funny -- "both haha" funny and "strange" funny -- that we have almost no clue about 72% of the Universe. That nearly 3/4 chunk of the cosmic budget is dark energy, the mysterious force (or pressure, really) that appears to be making the expansion of the Universe accelerate. We've known the Universe is expanding since the early 20th century, but everyone assumed, logically, that the combined gravity of all the objects in space was slowing the expansion, like tension in a rubber band. Then, in 1998, two independent teams of astronomers and physicists found out that not only is the Universe not slowing its bloating, but in fact is bloating ever-faster. This turned physics on its head and even now, on this 10th anniversary of the discovery, we're still trying to figure out the basics of the phenomenon. We don't know what's causing the acceleration, we don't ...