Until recently scientists have not been able to figure out the information coded in the folding of our DNA in the nucleus. A new map now makes this task simpler. This kind of map will not only tell us how the instructions in our DNA lead to making each one of us, but it may also provide new ways to understand and even treat diseases like cancer.
A comet named ISON has been hailed as a possible "comet of the century." But scientists aren't sure yet if it will survive a hairpin turn around the sun.