Denmark is sequencing all coronavirus samples and has an alarming view of the U.K. variant

[ProfessorGAC]

23. Definitely Yes

Remember the surface to mass ratio of something tiny.
Think spores!
Not quite milkweed (or dandelion seeds) because those have the evolutionary advantage of extensions with high surface area and very little mass. The feather vs. a BB. Weigh about the same. One falls at g, the other floats.
Same thing here.
I'm hesitant to make too much of this, because if viruses were this aerodynamically active, nobody would ever escape the cold or flu. I think wearing masks and keeping a reasonable distance is an expectation that all can fulfill.
Since as a whole country, we're not doing that great a job at these two, worrying about more distance and virus hang time doesn't seem useful
Viability is tricky, though.
How hot is it, how much light, how much of the light is uV, is the virus encapsulated in mucuous or exposed to oxygen (although the lipid sheath is meant to protect the protein from oxidation), is there lipase in spittle (a good thing), etc.
Is it viable in air for a long time? Maybe.
There are lots of maybes about this stuff.