A Galaxy Without Dark Matter

"Dr Collins is cautious to conclude that the galaxy has no dark matter halo, based on the current evidence" now that is a very polite way of saying that it is nonsense. An unusually transparent galaxy about the size of the Milky Way is prompting new questions for astrophysicists. The object, with the great name of NGC1052-DF2, appears to contain no dark matter.If this turns out to be true, it may be the first galaxy of its kind - made up only of ordinary matter. Currently, dark matter is thought to be essential to the fabric of the Universe as we understand it.

Trolls

Over a decade ago, I was always very proud when shopkeepers et al would compliment me on the politeness and manners of my daughters. But I have to ask are good manners a redundant concept these days, any disagreement, it seems is the instant trigger for obscenities and vile online comments using offensive language. The expression ‘agree to disagree’ seems redolent of a distant kinder era. Universal access to social media provides an all to easy means for a great many people to launch into a tirade of vile filth and downright nastiness on Facebook and Twitter. In a very short space of time, many people have become unable to contemplate that someone might hold different views to their own and have the right to do so.