Both variants of <a href="https://en.wikipedia.org/wiki/en:Ariane_6" class="extiw" title="w:en:Ariane 6">Ariane 6</a>: with two (left) and four (right) <a href="https://en.wikipedia.org/wiki/en:Solid_rocket_booster" class="extiw" title="w:en:Solid rocket booster">solid rocket boosters</a>.
<a href="//commons.wikimedia.org/wiki/User:SkywalkerPL" title="User:SkywalkerPL">SkywalkerPL</a>
CC BY 3.0
<span class="int-own-work" lang="en">Own work</span>