Alien ‘Monsters’ In Space! Or Are They Terrestrial Biological Entities?, page 1

IMO it is certainly possible these are some sort of organism.
For example take the thought by Carl Sagan about possible life on Jupiter:

There has been much speculation that any life on Jupiter, or on other gas giants, might be ammonia-based life. The possibility of "abundant biota" in the upper regions of Jupiter's atmosphere was considered in a 1976 paper by Carl Sagan and Edwin E. Salpeter1 prior to the arrival of the first Jupiter probe, Pioneer 10. Sagan and Salpeter compared the ecology of the Jovian atmosphere with that of terrestrial seas which have simple photosynthetic plankton at the top level, fish at lower levels feeding on these creatures, and marine predators which hunt the fish. The three hypothetical Jovian equivalents of these organisms, Sagan and Salpeter termed "sinkers", "floaters", and "hunters". They envisaged creatures like giant gas-bags (see bubble life) that move by pumping out helium and calculated that the "hunter" variety might grow to be many kilometers across (and therefore visible from space).

Jovian aerial life-forms like those described by Sagan and Salpeter are portrayed in Arthur C. Clarke's short story "A Meeting with Medusa" (in The Wind From the Sun). Ben Bova refers in his novel Jupiter to

"[H]uge balloonlike creatures called Clarke's Medusas that drifted in the hurricane-like winds surging across the planet. Birds that have never seen land, living out their entire lives aloft. Gossamer spider-kites that trapped microscopic spores. Particles of long-chain carbon molecules that form in the clouds and sift downward, toward the global ocean below."

Bova speculates further that, in the high-pressure, liquid hydrogen ocean that lies below Jupiter's thick atmosphere, are colossal, city-sized creatures with intelligence. He follows the exploits of one of these sentient giants – Leviathan:

Predators swarmed through Leviathan's ocean: swift voracious Darters that struck at Leviathan's kind and devoured their outer members.

I surmise that some strange life forms could indeed live in the upper atmosphere and even space, feeding upon anything from light rays to radiation. Who can say? Since there are several forms of light our eyes cannot see, there may be odd entities floating around us we never take notice of here on earth, why not in space? Under the right conditions, perhaps certain things are more visible.