On 28 September 2015 there will be an total eclipse of the Moon, which will be viewable from many areas of the world. It will be an interesting sight and worth getting up at an unsociable hour to see it, especially since there won't be another total lunar eclipse until 2018. The Moon during a recent… Continue reading Lunar Eclipse 28 September 2015
Author: Steve Hurley
Hi I am Steve Hurley. Although I work in the IT industry. I studied for a PhD in astronomy in the 1980s. My real passion is explaining scientific concepts to a non-scientific audience. My blog (explainingscience.org) covers various scientific topics, but primarily astronomy. It is written in a style that it is easily understandable to the non scientist.
Publications and videos
For links to my books and videos please visit www.explainingscience.org
How the length of a day changes over the year
Updated January 17 2026 Most people are probably unaware of this but the length of a solar day, which is the natural day measured by the rising and setting of the Sun isn't always 24 hours. It varies slightly throughout the course of the year and the days in mid September are the shortest solar days in… Continue reading How the length of a day changes over the year
Is There Anyone Out There? updated post
Thank you to everyone who has downloaded my books. One recent commenter pointed out that the links in the post point to the Amazon UK website and it was unclear how someone based outside the UK would download the books. I have therefore updated the post to make it easier for readers outside the UK to… Continue reading Is There Anyone Out There? updated post
Is There Anyone Out There ? An e-book about SETI
Updated 22 January 2026 Is there anyone out there? The question of whether or not alien intelligent life exists elsewhere in the Universe has fascinated humankind for hundreds of years. Until relatively recently, this was merely the stuff of science fiction, but since the middle of the twentieth century astronomers have been able to seriously… Continue reading Is There Anyone Out There ? An e-book about SETI
The Steady State Theory
Revised March 2026 The Steady State theory is an elegant alternative to the Big Bang theory of the origin of the Universe . It was very popular among astronomers in the 1950s, but is now obsolete. What is the Steady State Theory? The Big Bang theory states that the Universe originated from an incredibly hot… Continue reading The Steady State Theory
Explaining Science 