The temptation to skip research and just make stuff up can have disastrous results. Here are some tips for when it is okay to skip it.
What happens when you’ve exhausted your avenues of research? Turns out you can fake what you don’t know–without readers ever noticing.
Source: Research: When in Doubt, Make It Up – Helping Writers Become Authors
Odd Sock Proofreading & Copyediting 