# Noxious Smoke Hints at Active Volcanoes on Mars

Source: [Astronomy News & Astronomical Events | Sky & Telescope](https://skyandtelescope.org/astronomy-news/noxious-smoke-hints-at-active-volcanoes-on-mars/) · 2026-11-09 · Space
Page: https://themorning.science/story/noxious-smoke-hints-at-active-volcanoes-on-mars-1abc1302dc16f197
Kind: research · Impact: low

## In brief

- The odor of hydrogen chloride in Mars's atmosphere indicates that some form of volcanic activity is still going on, according to Sky & Telescope.
- The report's headline describes the finding as noxious smoke pointing to active volcanoes on Mars.
- The source article is a short news item and gives no further technical details on the detection.

## Why it matters

If Mars has ongoing volcanic activity, that bears on the planet's geological and atmospheric history and on how its atmosphere is replenished.

## Coverage

- [Noxious Smoke Hints at Active Volcanoes on Mars](https://skyandtelescope.org/astronomy-news/noxious-smoke-hints-at-active-volcanoes-on-mars/) — Astronomy News & Astronomical Events | Sky & Telescope, 2026-11-09

Tags: mars, volcanism, hydrogen chloride, planetary atmospheres, planetary science

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Brief generated by AI (claude-haiku-5-5) from the reporting listed under Coverage. Headlines belong to their publishers. The Morning Science – https://themorning.science