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Gas on Mars May Come From a Volcano

A spacecraft found gas near a large volcano called Alba Mons.

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Science news editorial illustration for Mars Gas Detection Offers Clue to Possible Volcanic Activity

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A has a an of . The is a .

the from the . They the and of in the .

The not that a is . have not or on .

Source: European Space Agency, 2026-11-04.

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Try 2 questions about this story, then explain one idea in your own words. Check the text whenever you need to.

In this lesson: Find the gas location and recognise a possible underground source.

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Read and understand · 1/2Where did the spacecraft find the gas?

Read the answer and explanation

Near Alba Mons on Mars. The text places the gas near Alba Mons on Mars.

Clue: A spacecraft has found a gas above an area of Mars. The area is near a large volcano called Alba Mons.

Read and understand · 2/2What do scientists say may be the source of the gas?

Read the answer and explanation

Hot rock below the ground. The suggested source is hot rock underground; it remains a possibility.

Clue: Scientists say the gas may come from hot rock below the ground. They studied the gas and pictures of cracks in the surface.

Grammar in this story: Possibility with may

the gas may come from hot rock below the ground

“May” plus a base verb expresses possibility. Example: “The clouds may clear later.” It leaves room for other outcomes.

Your turn

Name where the gas was found and explain whether scientists have seen a volcano erupting there.

See one possible answer

The gas was found near Alba Mons on Mars. Scientists have not seen a new eruption or lava flow there.

Your answer can be different. Give a reason and use your own words.

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