See just after BSc Physics you will not get a job in Data Science but if you go for MSc in Astronomy or MSc in Data Science course then you can go for it. Most of the people who work in the field of Astronomy and Astrophysics usually get the most exposure towards data science and data analysis. So you can pursue this in order to have a good career ahead.

To know more about Data Science visit the link below:

https://www.careers360.com/courses/data-science-course

I hope this answer helps. All the very best for your future endeavors!