The pH scale is a measure of how acidic or alkaline something is, 1 being highly acidic, 14 being highly alkaline, and 7 ...

According to recent analysis, water vapor plumes erupting from cracks in Enceladus’ icy shell have a pH between 10.1 and 11.6 ...

Have you ever wondered how many stars you can see at night? From a perfect dark sky location, free from any light pollution, a person with excellent vision may observe a few thousand stars in the sky ...