Scientists have suggested that these particles then travel through the air, as the "gold dust" has been found 621 miles away ...

and specks of gold dust out of its crater regularly. While the gold particles may appear microscopic, the net quantity can make up about 80 grams of the valuable element, estimated to be worth $ ...

To select the best air purifiers, we focused on those that use high-efficiency particulate air (HEPA) filters, the gold standard for removing particles like dust, smoke and pet dander from the air ...