It’s reassuring to think humans are evolution’s ultimate destination – but research shows we may be an accident: The Cambrian explosion, about 530 million years ago, was when most of the major groups of animals first appear in the fossil record. canbedone/Shutterstock Depending upon how you do the counting, there are around 9 million species …
COVID vaccine: even healthcare workers may be hesitant – but new evidence can be reassuring: Rawpixel.com/Shutterstock Both in the UK and around the world, healthcare workers will be among the first to be offered a vaccine against coronavirus. But research suggests that some staff are hesitant about accepting one. Why might there be a level …
Are the Earth’s magnetic poles about to swap places? Strange anomaly gives reassuring clue: St Helena, where Earth's magnetic field behaves strangely. Umomos/Shutterstock Deep inside the Earth, liquid iron is flowing and generating the Earth’s magnetic field, which protects our atmosphere and satellites against harmful radiation from the Sun. This field changes over time, and …