How loud do cicadas get?

Certain species of cicadas in North America can produce calls reaching levels of around 100 decibels or higher, akin to the noise produced by a lawnmower or a passing jet aircraft.

6 things to know about the first space shuttle flight

Back on April 12, 1981, the space shuttle roared to life for the first time. Columbia lifted off from Kennedy Space Center carrying two astronauts – a moonwalker, John Young, and a rookie, Bob Crippen.