Dark Matter and the Dinosaurs
Dark disappointment... Author: Lisa Randall I thought that physicists had given up. In the 1980s and 1990s, when they decided that the universe was mostly made of dark matter and dark energy – two substances that are basically undetectable – I figured that they had finally thrown in the towel. Invoking such seemingly magical substances to explain the world around us seemed like a step all the way back to the Dark Ages (pun intended). Did they really know what they were doing, or had decades of quantum wackiness finally driven them off the deep end? Thanks to Lisa Randall, [...]