What's with the gradient shadow? The space station shadow crossed the module, and it was blurry. I thought shadows in space were knife-sharp. The nose-cone shadow was. Its not the stream resolution, is it? Other knife-sharp features were visible. Maybe the space station is fuzzy? Maybe the module material blurs shadows? What am I missing?
The sun has almost exactly the same apparent angular size from either Earth's surface or LEO, because it's almost exactly the same distance away. But since that angular size is only about half a degree, shadows observed at short distances appear fairly sharp, either on Earth or in space.
What you may be thinking of is that, in many cases, shadows are darker in space, because the sky is dark, even in broad daylight. There's no atmospheric scattering to provide indirect, ambient illumination of regions that are shaded from direct sunlight. But there can still be indirect lighting from other surfaces.
For example, in photos of Apollo astronauts on the moon, shaded regions of the astronauts' spacesuits are still fairly-well illuminated by light bouncing off the lunar surface. But shadowed regions of the surface itself appear almost pitch-black, because the only thing they can "see" is the dark sky.