Hi Prem,

Yes you can study astrophysics or astronautics in this modern time or the modern era. This is one of the best courses in this era because this are the courses in which students get great knowledge related to planets in the universe and about the universe too. Also they say Good scope in both of the courses that is astrophysics for astronautics. You can become a researcher aur an engineer in that field. There are many fields in both the courses. There are different type of different astronomers like Stellar Astronomer, solar astronomer etc.

I hope your question has been answered properly.

All the best for your future!