Science

Hi Yang,
You can always pursue your hobbies or professional courses while you are studying or involved in research. If you are serious about your profession you should very well enhance your skills through such a course. You may look for wildlife photography courses which you could pursue with your studies. I believe you have answer to how you can pursue your studies abroad. Check university websites for requirements and prepare. Email the universities about additional courses like photography which you could pursue. Add-on courses are offered by universities abroad, you just need to research well. Check this:
https://www.tafecourses.com.au/resources/study-photography-courses-in-australia/

In order to become a space scientist or technologist, your son can appear for engineering entrance examinations conducted by engineering colleges which offer aeronautical or aerospace engineering. The eligibility criteria to seek admission in B.Tech aeronautical or aerospace engineering is PCM subjects in 10+2 stage. IITs, PEC Chandigarh, IIST are best institutes for B.Tech aeronautical or aerospace. Admission is based on JEE results. IIST was established by ISRO and graduate engineers clearing from institutes are hired by ISRO for their space program. You can also evaluate some private universities such as Amity and Manipal for B.Tech in aeronautical or aerospace engineering.