Where to start with Data Science
Well, I started studying in Datacamp and I really recommend this Machine learning course it's very complete for new learners.

Udacity has this Deep-learning course and it's a complement for the Coursera Machine learning course.

It's very important to research a lot in other sources but there you can paint a path for your Data Science skills through these ones.

I'm working and studying in Machine learning and I store the test projects in this repository, but is very important to have a little bit of knowledge of python and octave

Already exist other languages and tools like R for test your data sets