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Add in the nebulosity of the last days of a presidential administration and you can see where giving flowers gets murky.

In this picture made by Chris Heapy, at the upper left of the Jellyfish Nebula there is a much fainter background area of nebulosity, which is a large cloud of mostly molecular hydrogen gas and dust.

Later, the stars wander out of their nursery to seek their fortunes in the Milky Way, stellar adolescents still surrounded by tuffs of glowing nebulosity, residues still gravitationally attached of their amniotic gas.

“I have announced this star as a comet, but since it is not accompanied by any nebulosity and, further, since its movement is so slow and rather uniform, it has occurred to me several times that it might be something better than a comet. But I have been careful not to advance this supposition to the public.”

"You can also see nebulosity where material has been lit up from inside by stars; and features like the Horsehead Nebula where that star formation has yet to really get going."