From Earth to the Universe: Picture of the day


COSMIC MICROWAVE BACKGROUND

The ultimate limit of our vision, the cosmic microwave background is the remnant of the Big Bang fireball in which the whole Universe was thought to be created. This image made by the WMAP satellite shows the whole sky unfolded onto a flat image, and is covered with tiny variations in temperature, shown by the different colours. These fluctuations are thought to be the structures that eventually formed into galaxies during the very early Universe.

Credit: Microwaves by the WMAP Science Team for NASA

In 2009, the "From Earth to the Universe" project brought astronomy to millions of people around the world. Take a tour of just some of the locations in a short video on the FETTU Highlights page.