Updated 20 November 2025 his post covers a brief history of the Universe from the Big Bang until the the present day. This, as I am sure you'll agree, is a pretty big topic so I'll only give a outline of some of the key events and when we believed they happened. This post is… Continue reading The Universe’s History: From Big Bang to Today
Category: Cosmology
Stardust
Last week I was on holiday in London. While I was there, I spent an afternoon at the Royal Greenwich Observatory, which is set on top of a hill in East London. It was commissioned in 1675, making it one of the oldest astronomical observatories in the world. Sadly, it can no longer function as… Continue reading Stardust
The Universe Past, Present and Future.
The Universe is all existing matter and space, including all stars, planets, galaxies and the space between them. This post, which is the first in a series about cosmology discusses the origins of the Universe and its ultimate future. (All my posts on this topic can be found at https://explainingscience.org/tag/cosmology/) How large is the Universe ?… Continue reading The Universe Past, Present and Future.
Explaining Science 