On Sept. 27th, 2015, Earthlings will be treated to a skywatching event not seen seen 1982. The 'Supermoon' will also turn a reddish hue due to the moon passing directly behind the Earth, into its shadow. On Sept. 27th, 2015, Earthlings will be treated to a skywatching event not seen seen 1982.
As you probably already know, all of the cells in your body started from a single cell. That single cell then divided many, many times to turn into the 50 trillion or so cells that make up you. Almost all of the cells in your body share the same DNA as was found in that first cell*.
Genes, DNA and cancer. This page is about the changes in genes and DNA that may lead to cancer. DNA and genes. Inside almost every single cell in your body is a structure called the nucleus, which is the control centre of the cell. Inside the nucleus are 23 pairs of chromosomes.