| She appears out of the shadows one night, like an exotic creature from another stratosphere. |
| Plinian eruptions are marked by columns of smoke and ash extending high into the stratosphere. |
| It eventually reaches the stratosphere, where it causes a thinning of the ozone layer. |
| Then 50 minutes after takeoff, the spacecraft separated from White Knight and rocketed into the stratosphere. |
| The balloon was designed to be the first to burst through into the stratosphere, as illustrated by our computer graphic below. |
| Before now, scientists merely theorized that dichlorine monoxide in the stratosphere played a key role in destroying ozone. |
