“Just” is Usually Unnecessary

Look at this sentence:

It’s one of just a few similar objects that scientists have found in our region of space, and, at 9.4 times the mass of our sun, is not a supermassive black hole. 

https://www.livescience.com/black-hole-spin-calculated.html

Now take out the “just.”

It’s one of a few similar objects that scientists have found in our region of space, and, at 9.4 times the mass of our sun, is not a supermassive black hole.

Tighter, more direct, isn’t it? Didn’t lose any actual content, did you?

I think the only time you should use the adverb “just” is when you are saying how recently in the past something happened. “we did it just now.” Otherwise, leave it out.

I should have a picture. They used a generic artist’s conception of a black hole from Shutterstock. Myself, I’d have preferred a picture that was somehow connected to the article.