"No Man's Sky" has its players scrambling to get resources across the planets of its procedurally-generated galaxies—discovery is, after all, one of the main tenets of a game that's almost completely random—and one of the hardest minerals to get in the universe is iridium. It can be daunting to find across the vast galaxy, so here's some tips on how to find them.
The one thing to know about iridium (and most rare minerals) in "No Man's Sky" is that there's no way to get it and anything consistently. You won't be coming back to a stockpile of the resource, no matter how much you want one, but all you have to do is try getting the most reliable sources. You'll need iridium to craft a lot of things relating to ships, including blueprint designs, hyperdrives, and spacecraft weaponry.
GameRant suggests that the best way of finding iridium is still to grind it out on foot and keep exploring "No Man's Sky"'s huge planets. There is an easier way to do this, by scanning planets and their rock formations. Chances are you'll find iridium in unusual geological formations—it's not a guarantee, but the chances are higher. You can also go back to space and blast asteroids to try and find the resource, just as you would with thamium9.
The other harder and more expensive way is to find iridium in "No Man's Sky"'s online marketplace. Although players will tend to hoard it for themselves, occasionally you'll find someone willing to part ways with some of their iridium stock. This is a lot less reliable, however, as it depends on whether someone will sell their iridium—and if you can afford it.
Iridium is so rare that "No Man's Sky" players have apparently managed to run into each other—a rare feat—while searching for the resource. If you find yours, make note of where and how you found it, because that's an edge you'll have over other people.