This Week: Ancient water = ancient habitat?
In the News: Screaming about screen time?
I thought I heard thunder during a snowstorm. Is that possible? Yes. A storm that includes any occurrence of thunder with snow is called a thundersnow event or thunder snowstorm. Lightning and thunder go together; you can’t have one without the other. Thunder is generated when the lightning heats the air five times as hot [...]
Why does snow sometimes sparkle? Photo of snow in west Sierra Nevada by Itrovert Sometimes on a sunny day, freshly fallen snow may appear to sparkle or glitter. This happens because when light hits an object light, it can be absorbed, in which case the object is heated; transmitted, in which case light passes through [...]