Making Tech Headlines · Page 5
A Martian cloud keeps a schedule that scientists can finally model
· New York time
Researchers have modeled the formation of a recurring cloud near Mars's Arsia Mons volcano, with results suggesting ice-forming physics that has never been directly observed, Ars Technica reports. The proposed explanation is a model, not a direct observation of that unfamiliar process. The Arsia Mons Elongated Cloud appears in the morning during Martian spring and summer, stretches beyond 1,000 miles and then dissipates. The cycle repeats for several months. Its length is roughly the distance between New York and Kansas City. A probe first recorded the formation in 2018. Explaining how such a long, thin cloud develops has challenged scientists, making the new modeling a substantive advance even while its physical interpretation remains tentative. The cloud's behavior would be impressive in an office employee: appear regularly, expand the assignment to continental proportions and disappear before the afternoon meeting. Unfortunately for planetary researchers, punctuality does not automatically come with an explanatory memo. Understanding the formation could improve knowledge of the Martian atmosphere and the processes that create ice there. The interesting result is not that Mars has abandoned physics, but that familiar observations may require mechanisms scientists have not directly witnessed. The planet continues to offer unusual weather without establishing a customer-service department for follow-up questions.
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