Saturday, 24 October 2026 Updated 45 min ago
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A 1,000-mile cloud on Mars may reveal physics never seen in nature

The wispy formation appears near the volcano Arsia Mons and gradually elongates until it reaches over 1,000 miles—about the distance from New York to Kansas…

Image accompanying the story: A 1,000-mile cloud on Mars may reveal physics never seen in nature
Image: ESA · via Ars Technica

Ars Technica reports that the wispy formation appears near the volcano Arsia Mons and gradually elongates until it reaches over 1,000 miles—about the distance from New York to Kansas City as the crow flies—before dissipating.

Every morning during the Martian spring and summer, a thin and extremely long cloud emerges, only to disappear again. This cycle then repeats for several months.

This science story centres on the United States. Names and organisations mentioned in the coverage include Mars, Martian and Arsia Mons.

Why it matters

Research developments are often early steps — further studies typically determine how significant they prove to be.

Key details

Location
United States · Americas
Reported by
Ars Technica
First reported
Key names
Mars, Martian, Arsia Mons, York
Section
Science
Figure cited
Since it was first recorded by a probe in 2018, scientists have been unable to find a plausible explanation for the existence of this cloud, often referred to as the Arsia Mons Elongated Cloud (AMEC). (Ars Technica)

Sources

This is an independent summary. Read the full, original reporting from the publisher:

Read the full story at Ars Technica

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