The supermassive black hole at the heart of our Galaxy spat out an enormous flare of radiation 3.5 million years ago that would have been clearly visible from Earth.
Private health insurance is mostly a private industry, but governments play a key role in ensuring private health insurance companies remain profitable and viable, writes Dr Sophie Lewis. ... This article was written by Dr Sophie Lewis and first
Why Facebook needs to do more to protect you from online abuse. Facebook agrees to join international social media taskforce. The pressure is mounting for Facebook to develop more open and responsive ways of dealing with online hate, write Dr Fiona