A parachute for a weather balloon being tied to a radiosonde at the National Weather Service's Baltimore/Washington Weather Forecast Office in the Dulles section of Sterling, Loudoun County, Virginia
<a href="//commons.wikimedia.org/wiki/User:Famartin" title="User:Famartin">Famartin</a>
CC BY-SA 4.0
<span class="int-own-work" lang="en">Own work</span>