IRAP<p>[<a href="https://astrodon.social/tags/Dust" class="mention hashtag" rel="nofollow noopener noreferrer" target="_blank">#<span>Dust</span></a> devils on <a href="https://astrodon.social/tags/Mars" class="mention hashtag" rel="nofollow noopener noreferrer" target="_blank">#<span>Mars</span></a>] They come in different sizes, occur frequently, ... and sometimes even merge, annihilate each other! For over four years, the <a href="https://astrodon.social/tags/camera" class="mention hashtag" rel="nofollow noopener noreferrer" target="_blank">#<span>camera</span></a> and <a href="https://astrodon.social/tags/microphone" class="mention hashtag" rel="nofollow noopener noreferrer" target="_blank">#<span>microphone</span></a> installed on the <a href="https://astrodon.social/tags/Perseverance" class="mention hashtag" rel="nofollow noopener noreferrer" target="_blank">#<span>Perseverance</span></a> rover have been observing their formation, movement ... and disappearance. The result is a better understanding of Martian weather conditions.</p><p>[<a href="https://astrodon.social/tags/Tourbillons" class="mention hashtag" rel="nofollow noopener noreferrer" target="_blank">#<span>Tourbillons</span></a> de <a href="https://astrodon.social/tags/poussi%C3%A8re" class="mention hashtag" rel="nofollow noopener noreferrer" target="_blank">#<span>poussière</span></a> sur <a href="https://astrodon.social/tags/Mars" class="mention hashtag" rel="nofollow noopener noreferrer" target="_blank">#<span>Mars</span></a>] Ils sont de tailles différentes, se produisent fréquemment, ... et parfois même fusionnent, s'annihilent ! Depuis plus de quatre ans, la <a href="https://astrodon.social/tags/cam%C3%A9ra" class="mention hashtag" rel="nofollow noopener noreferrer" target="_blank">#<span>caméra</span></a> et le <a href="https://astrodon.social/tags/microphone" class="mention hashtag" rel="nofollow noopener noreferrer" target="_blank">#<span>microphone</span></a> installés sur le rover <a href="https://astrodon.social/tags/Perseverance" class="mention hashtag" rel="nofollow noopener noreferrer" target="_blank">#<span>Perseverance</span></a> observent leur formation, leur déplacement ... et leur disparition. S'ensuit une meilleure connaissance des conditions météorologiques martiennes.</p><p>Info+ : <a href="https://www.nasa.gov/missions/mars-2020-perseverance/perseverance-rover/perseverance-rover-witnesses-one-martian-dust-devil-eating-another/" rel="nofollow noopener noreferrer" translate="no" target="_blank"><span class="invisible">https://www.</span><span class="ellipsis">nasa.gov/missions/mars-2020-pe</span><span class="invisible">rseverance/perseverance-rover/perseverance-rover-witnesses-one-martian-dust-devil-eating-another/</span></a></p>