ash

"Whether it's possible to have integrated scenarios that maintain a high-grade fusion plasma with these specific flows of excess fuel and ash from the plasma needs to be determined," Schwartz said.

If you stay outdoors for more than a few minutes, you can almost taste ash.

The place where, 18 years ago, my wife and I married at the tree marking the burial site of her father’s ashes.

“Grammy, I made that for you,” her granddaughter Violet called out, pointing in the ash.

Australia’s Bureau of Meteorology has also warned that the volcanic ash might drift to parts of the country's north on Wednesday.