There's a quote from Douglas Adams' The Hitchhiker’s Guide to the Galaxy that I’ve been thinking about a lot lately. “Space is big,” he writes. “You just won't believe how vastly, hugely, mind-bogglingly big it is. I mean, you may think it's a long way down the road to the drug store, but that's just peanuts to space.”
Starfield may as well put this quote on the cover page of its design document. The deafening prerelease hype for the game emphasizes its inclusion of “over 1,000 planets,” across hundreds of realistically rendered star systems throughout the galaxy. That promotion has also focused on just how much stuff there is to do across those myriad planets; Bethesda Head of Publishing Pete Hines said in a recent interview with IGN that he’s spent 150–160 hours in the game and “hasn’t even come close” to seeing everything.
Maybe the planets are more like asteroids, just as Skyrim's cities are more like neighborhoods. ;)