Shop at Amazon US

Contributions

If you like the website and want to contribute to the running costs then please do so below. All contributions are most welcome.

PayPal - The safer, easier way to pay online.

Almost uniformly distributed omni-directional radiation that's a direct remnant of the Big Bang event, which occurred 13.7 billion years ago, marking the beginning of the Universe. The once infinitely hot thermal radiation has now cooled down to a temperature of only 2.725K and primarily radiates in the microwave region of the electromagnetic spectrum.

WMAP image of the background cosmic radiation (credit:- NASA / WMAP Science Team)

Glossary A B C D E F G H I J K L M N O P Q R S T U V W X Y Z