Before revision: The Student Nitric Oxide Explorer (SNOE ), also known as Explorer 72 and STEDI 1 , was a small scientific satellite which studied the concentration of nitric oxide in the thermosphere.
After revision: ("snowy")The Student Nitric Oxide Explorer (SNOE ), also known as Explorer 72 and STEDI 1 , was a small scientific satellite which studied the concentration of nitric oxide in the thermosphere.