Now that the air contained far less dust and pollen, she could probably stop.
Initial results were surprising as the material excavated by the impact contained more dust and less ice than had been expected.
The smallest bag contained minute dust and fiber samples.
It contains stars, gas, dust, dark matter and a supermassive black hole at its centre.
The ring system contains little dust overall; it consists mostly of large bodies 0.2-20 m in diameter.
A few of the more peculiar large meteorites also seem to contain cosmic dust.
His decision to stay away hardened, he said, when the city offered families urns containing dust from the site.
Chat piles left behind by the mining companies contain lead dust that has blown around the city.
Our instruments indicated that this sector of space did not contain cosmic dust.
The drawers of the desk are open, but contain only dust.