Scientists have mapped the complete genetic codes of 21 breast cancers and catalogued mutations that gather up in beast cancer cells.
This hopefully will lead to much earlier detection which means easier treatment.
This research is trying to find out, genetically, how cancer evolves, so hopefully it'll be easier to spot mutations that lead to the growth of breast tumors.
The research team leader said:
"These findings have implications for our understanding of how breast cancers develop over the decades before diagnosis in adults and might help to find possible targets for improved diagnosis or therapeutic intervention in the future."
Breast cancer kills over 450,000 woman each year in the world, so this a great step forward for hundreds of thousands of people.
This is such a big step because scientists are getting their first real close up look at the mechanism behind cancer.
"We've known for many years now that all cancers are due to abnormalities of DNA that occur in every single cell of the body over the course of a lifetime. But although we've known that, it's remarkable how rudimentary our knowledge is about what the processes are that cause these abnormalities, these mutations in our DNA."
Hopefully soon they'll be able to see how breast cancer develops so they can treat it more effectively.
Let's go, science!