Are we looking down at the ocean from low Earth orbit or looking up toward space through Rayleigh scattered sunlight?
It’s not easy to tell. Maybe if there had been a 737 on it’s way into Burbank, or the odd hawk or seagull soaring around. Or, on the other hand, maybe a bit of solar panel or a corner of a Dragon or Soyuz for context.
The trees are a dead giveaway.
Very, very few trees growing in low Earth orbit. As a rule.
Technically I guess you can’t rule out the arrival of one of the giant tree-like bioships from some advanced civilization, but the odds aren’t in your favor on that one.
So the bad news is that I didn’t get to go drift weightless today in low Earth orbit. The good news is that it was a nice, warm, sunny day here on this patch of the planet’s surface.