Launch movie

You see the auxiliary balloon already up, and the main balloon (that will become huge in the stratosphere) rising in the background and taking over.

From Stephane Louvel, CNES.

First flight for the @CNES balloons campaign #Klimat2021. The @HemeraH2020 gondola has been launched on Thursday at 21:18:35. All Twin experiments will analyze several climate components in the stratosphere from the Swedish Esrange base @SSC_Rockets. pic.twitter.com/emzmMzu1np

— Louvel Stéphane (@LouvelStephane) August 12, 2021