Max L. answered 08/08/19
NYU Student Specialist in Video & Media Production
The same way you conduct any research: utilize all available resources. Crack down and commit yourself to studying articles, published works, research essays, scientific data, etc. There's no easy way to ground your science-fictional futuristic story in realism. Most authors have to do a lot of research, and not just for sci-fi.
For example, author David Baldacci creates giant folders of research for basically all of his novels. All authors struggle to write about the past or future, or even modern topics even they're not too well-versed in. But the end result is what it's all about. Channel your passion into your various forms of research. Kudos to you.