When a particularly large star explodes, it throws off a great deal of matter into outer space. In some cases, it leaves behind a formation so heavy that protons and electrons cannot exist, leaving only neutrons. This is the only physical phenomenon that I think can provide an adequate benchmark against which to measure the denseness of Greg Sheridan.
What the Gregs (Sheridan and Hunt) don’t get about emissions abatement
Conservative columnists and politicians are in lockstep on Direct Action. They're also wrong, writes Canberra economist Tom Westland.