Depending on the time of year, it is also filled with pollen and other spores, as well as seeds and ​ — in certain areas — ​ thousands of different kinds of microbes.
Taevalaotuses ei lenda üksnes linde, nahkhiiri ja putukaid, vaid hõljub sõltuvalt aastaajast ka õietolmu, eoseid ning mõnes paigas ka tuhandeid eri liiki mikroorganisme.