meteor dust

They form when water vapor congregates around specks of meteor dust floating in the mesosphere and freezes, forming ice crystals.

“In an average day, about 100 tons of meteor dust falls on the planet,” May writes.

"You bellow like that again and I'll make meteor dust out of you!"

I expected to see you two try to wallop each other into meteor dust!

"I needed some information about the meteor dust we passed through recently, sir," said Jeff.