Dark energy an unexpected finding

I offered recently to write an article for my local astronomy society on the discovery of dark energy.  It is  an expanded version of the blog post I wrote  on the topic last year and, at over 3000 words, it is longer  than my usual posts. I thought it would be of interest to many… Continue reading Dark energy an unexpected finding

Arecibo Update

Since the publication of this post on 2 December 2020 it appears that Arecibo observatory may be rebuilt. Although the $8 million pledged by the Puerto Rico Rico government is clearly not enough https://www.engadget.com/puerto-rico-approves-8-million-to-rebuild-arecibo-telescope-155454170.html I was saddened to see that the Arecibo Observatory in Puerto Rico has closed following catastrophic damage to its cables and… Continue reading Arecibo Update

Reasons for the Great Silence

In recent years there has been an increase in interest in SETI (the Search for Extra-Terrestrial Intelligence).  SETI now has its own telescope, an array of 42 separate radio dishes known as the Allen Telescope Array.   The Allen Telescope Array In 2016 the Breakthrough Listen programme started and is expected to run for ten… Continue reading Reasons for the Great Silence

The changing pole star

Polaris the North Pole Star

Polaris, commonly known as the pole star, is situated near the North Celestial Pole and has been used for centuries for navigation. But Polaris hasn't always been the Pole Star and won't be in future. This is gradually changing over a 25 800 year cycle.

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?