Our Finely-tuned Universe Part I-Fundamental forces

In my next two posts I'll talk about the idea that the fundamental forces which govern our Universe and fundamental constants such as: the strength of gravity, the electric charge of the electron and the amounts of matter, dark matter and dark energy  in the Universe have been in some sense finely tuned to allow… Continue reading Our Finely-tuned Universe Part I-Fundamental forces

The Lyrids 2022

The night of  22/23 April will be the peak of the Lyrids, one of the most famous prolific meteor showers. Meteors (also known as shooting stars) are bright streaks of light caused by small lumps of rock or metal called meteoroids hitting the Earth’s atmosphere at very high speed. As they pass through the atmosphere they get heated… Continue reading The Lyrids 2022

Effects of Large Satellite Constellations on Astronomy

  Many of you will have seen the images back in 2019 which showed  long ‘trains’ composed of up to sixty SpaceX Starlink satellites crossing the sky in a straight line. These pictures hit the headlines not only because of the number of satellites, but because of their brightness. A 'train' of SpaceX Starlink satellites,… Continue reading Effects of Large Satellite Constellations on Astronomy

The Perseids 2021

The night of  12/13  August will be the peak of the Perseids, one of the most famous prolific meteor showers. Meteors (also known as shooting stars) are bright streaks of light caused by small lumps of rock or metal called meteoroids hitting the Earth’s atmosphere at very high speed (in the case of the Perseids around 200,000 km/h).… Continue reading The Perseids 2021

Life on Venus?

Many of you will have seen the story widely reported in the media of the discovery of the gas phosphine in the clouds of Venus - if not, you can find the story here: https://www.bbc.co.uk/news/science-environment-54133538. On Earth phosphine is produced by bacteria and it has led to the interesting speculation as to whether there could be… Continue reading Life on Venus?