| 1. | "We're definitely looking for threats, vehicles that throw off dust clouds ."
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| 2. | The spiral dust cloud over Arsia Mons can tower above the volcano.
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| 3. | Then there was a loud boom, a dust cloud, and then silence,
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| 4. | The intervening dust clouds makes the study of the star very difficult.
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| 5. | Physically being in a dust cloud seemed to be a risk factor.
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| 6. | It photographed a dust cloud that could be giving birth to planets.
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| 7. | They had experienced rationing, withstood piercing cold, dust clouds and exhaustion.
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| 8. | Dust clouds there had left astronomers working in a virtual fog.
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| 9. | The dust cloud is generated using the Nihka motor dust generator.
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| 10. | The Sahara is not the only source of globe-hopping dust clouds.
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