These are some of my cosmology posts
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e-book on Venus and how to Terraform it
Updated 7 December 2025 I have extensively expanded and rewritten all three “A Short Guide to…” e-books. These books available on Kindle for a competitive price I hope you enjoy reading the new versions of these books (if you’ve not done so already). Venus is, the planet closest to the Earth in size and internal…
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The evenings are drawing out already
Updated 13 December 2025 —————————— As I complete this post, it’s completely dark outside and it’s only 5 o’clock in the afternoon; most people I come across think that it will continue to get dark earlier and earlier in the afternoons until the date of the winter solstice which for the UK in 2025 falls…
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The discovery of dark energy
The is a now an expanded and updated version of this post available at: https://explainingscience.org/2020/12/10/dark-energy-an-unexpected-finding/ The Expansion of the Universe Astronomers have known since the late 1920’s that the Universe is expanding. By this we mean that distances between objects which are not bound together by another force, such as gravity, increase over time.…
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Daylight Saving Time
As mentioned in my previous post, in the early hours of Sunday 27 October the clocks go back an hour throughout the European Union and daylight saving time comes to an end. Although many Europeans will welcome the extra hour in bed on the night of 26/27 October, I suspect that a lot of people…
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Jim Peebles winner of the Noble Prize 2019
I was interested to hear that Jim Peebles, at the age of 84, has won a half share of the 2019 Noble Prize for physics for theoretical discoveries in physical cosmology. Jim Peebles (1935-) Image from Wikimedia commons In the early 1960s Peebles and his colleague Robert Dicke had predicted the existence of the microwave…
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The Science Behind Time Zones Explained
Discusses the measurement of time and the use of time zones globally. It explains solar time, apparent solar time, and mean solar time, highlighting how time varies due to Earth’s orbit and tilt. The establishment of standard time zones, particularly through GMT, addresses coordination for transportation and communication..… Continue reading The Science Behind Time Zones Explained…
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The September equinox
In 2019 September 23 is the date of the September equinox and is also the first day of autumn (or the first day of spring if you’re one of my readers in the Southern Hemisphere). In this post I’ll talk about the equinoxes and discus the commonly held view that they are the two days in…
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The Goldbach Conjecture
The Goldbach conjecture, posed in 1742, asserts that every even number greater than 2 can be expressed as the sum of two prime numbers. Despite exhaustive verification for even numbers up to four quadrillion, no proof exists for all even integers. A million-dollar prize for a solution remains unclaimed.… Continue reading The Goldbach Conjecture →
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The Science Geek is now Explaining Science
When I started my Science Geek blog back in April 2014, I never expected it still to be up and running five years later. Over these five years its popularity has gradually increased, and I now have around 2,300 followers. However, after five years of blogging I feel now that it is time for…
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12-13 August 2019 – the Perseids
For revised post containing more tips on how to view the Perseids see The Perseids 2021. 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 a very high speed (in the case of the Perseids around 200,000 km/h). As…
Explaining Science 