Question Your World - What's the buzz about cicadas this spring? by ScienceMuseumofVA published on 2021-04-07T17:11:28Z Do you remember the year 2004? Mean Girls was on the big screen, Usher’s "Burn" was heating up the Billboard charts, and the TV show Friends aired its final episode. Also, that was the last time 15 states in the US experienced the 17 year periodic Cicada emergence! Meaning 17 years later is...now(!!) and the process is happening again. This spring marks the return of the Brood X cicadas! So what's with this natural occurrence? Why will this spring be filled with cicadas?