Tech
A 1,000-mile cloud on Mars may reveal physics never seen in nature
Publication: Ars Technica - All content
Author: Tereza Ondráčková, wired.com
Source published: 24/10/2026, 11:50:28 UTC
Briefing created: 24/10/2026, 12:44:51 UTC
Based on a feed excerpt; full article content has not been acquired. Source evidence retrieved 24/10/2026, 12:43:24 UTC.
Briefings
Researchers successfully modeled the Arsia Mons Elongated Cloud (AMEC), a 1,000-mile cloud observed on Mars since 2018, for the first time. The simulation revealed that the cloud's formation requires exotic physics not typically seen in nature, suggesting a new physical mechanism driving this rare atmospheric phenomenon. The cloud appears near Arsia Mons and elongates to over 1,000 miles before dissipating, repeating every few months. This breakthrough provides the first plausible explanation for the cloud's existence, challenging previous scientific understanding of Martian atmospheric dynamics.
Key points
- The Arsia Mons Elongated Cloud (AMEC) is a thin, extremely long cloud observed on Mars that elongates to over 1,000 miles before dissipating, repeating every few months.
- A new simulation successfully modeled the AMEC's formation, revealing the need for exotic physics that has never been directly observed in any planet's atmosphere.
Context
The Arsia Mons Elongated Cloud (AMEC) is a rare atmospheric feature on Mars that has been observed by probes since 2018. Its existence has puzzled scientists due to its unique 1,000-mile length and short lifespan. This study marks the first successful modeling of the cloud's formation, potentially explaining its physical mechanism.
Limitations
The evidence is limited to a single study published in 2026. The simulation results are based on theoretical physics not previously observed in nature. The exact physical mechanism driving the cloud remains unconfirmed, and the study does not provide direct observational data on the cloud's behavior.
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